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1 | 8005-8008 | 7
What products would be formed when a nucleotide from DNA containing
thymine is hydrolysed 10 8
When RNA is hydrolysed, there is no relationship among the quantities of different
bases obtained What does this fact suggest about the structure of RNA |
1 | 8006-8009 | 10 8
When RNA is hydrolysed, there is no relationship among the quantities of different
bases obtained What does this fact suggest about the structure of RNA Summary
Summary
Summary
Summary
Summary
Carbohydrates are optically active polyhydroxy aldehydes or ketones or molecules which
provide such units on hydrolysis |
1 | 8007-8010 | 8
When RNA is hydrolysed, there is no relationship among the quantities of different
bases obtained What does this fact suggest about the structure of RNA Summary
Summary
Summary
Summary
Summary
Carbohydrates are optically active polyhydroxy aldehydes or ketones or molecules which
provide such units on hydrolysis They are broadly classified into three groups —
monosaccharides, disaccharides and polysaccharides |
1 | 8008-8011 | What does this fact suggest about the structure of RNA Summary
Summary
Summary
Summary
Summary
Carbohydrates are optically active polyhydroxy aldehydes or ketones or molecules which
provide such units on hydrolysis They are broadly classified into three groups —
monosaccharides, disaccharides and polysaccharides Glucose, the most important
source of energy for mammals, is obtained by the digestion of starch |
1 | 8009-8012 | Summary
Summary
Summary
Summary
Summary
Carbohydrates are optically active polyhydroxy aldehydes or ketones or molecules which
provide such units on hydrolysis They are broadly classified into three groups —
monosaccharides, disaccharides and polysaccharides Glucose, the most important
source of energy for mammals, is obtained by the digestion of starch Monosaccharides
are held together by glycosidic linkages to form disaccharides or polysaccharides |
1 | 8010-8013 | They are broadly classified into three groups —
monosaccharides, disaccharides and polysaccharides Glucose, the most important
source of energy for mammals, is obtained by the digestion of starch Monosaccharides
are held together by glycosidic linkages to form disaccharides or polysaccharides Proteins are the polymers of about twenty different aaaaa-amino acids which are
linked by peptide bonds |
1 | 8011-8014 | Glucose, the most important
source of energy for mammals, is obtained by the digestion of starch Monosaccharides
are held together by glycosidic linkages to form disaccharides or polysaccharides Proteins are the polymers of about twenty different aaaaa-amino acids which are
linked by peptide bonds Ten amino acids are called essential amino acids because
they cannot be synthesised by our body, hence must be provided through diet |
1 | 8012-8015 | Monosaccharides
are held together by glycosidic linkages to form disaccharides or polysaccharides Proteins are the polymers of about twenty different aaaaa-amino acids which are
linked by peptide bonds Ten amino acids are called essential amino acids because
they cannot be synthesised by our body, hence must be provided through diet Proteins
perform various structural and dynamic functions in the organisms |
1 | 8013-8016 | Proteins are the polymers of about twenty different aaaaa-amino acids which are
linked by peptide bonds Ten amino acids are called essential amino acids because
they cannot be synthesised by our body, hence must be provided through diet Proteins
perform various structural and dynamic functions in the organisms Proteins which
contain only a-amino acids are called simple proteins |
1 | 8014-8017 | Ten amino acids are called essential amino acids because
they cannot be synthesised by our body, hence must be provided through diet Proteins
perform various structural and dynamic functions in the organisms Proteins which
contain only a-amino acids are called simple proteins The secondary or tertiary
structure of proteins get disturbed on change of pH or temperature and they are not
able to perform their functions |
1 | 8015-8018 | Proteins
perform various structural and dynamic functions in the organisms Proteins which
contain only a-amino acids are called simple proteins The secondary or tertiary
structure of proteins get disturbed on change of pH or temperature and they are not
able to perform their functions This is called denaturation of proteins |
1 | 8016-8019 | Proteins which
contain only a-amino acids are called simple proteins The secondary or tertiary
structure of proteins get disturbed on change of pH or temperature and they are not
able to perform their functions This is called denaturation of proteins Enzymes are
biocatalysts which speed up the reactions in biosystems |
1 | 8017-8020 | The secondary or tertiary
structure of proteins get disturbed on change of pH or temperature and they are not
able to perform their functions This is called denaturation of proteins Enzymes are
biocatalysts which speed up the reactions in biosystems They are very specific and
selective in their action and chemically majority of enzymes are proteins |
1 | 8018-8021 | This is called denaturation of proteins Enzymes are
biocatalysts which speed up the reactions in biosystems They are very specific and
selective in their action and chemically majority of enzymes are proteins Vitamins are accessory food factors required in the diet |
1 | 8019-8022 | Enzymes are
biocatalysts which speed up the reactions in biosystems They are very specific and
selective in their action and chemically majority of enzymes are proteins Vitamins are accessory food factors required in the diet They are classified as
fat soluble (A, D, E and K) and water soluble (B group and C) |
1 | 8020-8023 | They are very specific and
selective in their action and chemically majority of enzymes are proteins Vitamins are accessory food factors required in the diet They are classified as
fat soluble (A, D, E and K) and water soluble (B group and C) Deficiency of vitamins
leads to many diseases |
1 | 8021-8024 | Vitamins are accessory food factors required in the diet They are classified as
fat soluble (A, D, E and K) and water soluble (B group and C) Deficiency of vitamins
leads to many diseases Rationalised 2023-24
302
Chemistry
Nucleic acids are the polymers of nucleotides which in turn consist of a base,
a pentose sugar and phosphate moiety |
1 | 8022-8025 | They are classified as
fat soluble (A, D, E and K) and water soluble (B group and C) Deficiency of vitamins
leads to many diseases Rationalised 2023-24
302
Chemistry
Nucleic acids are the polymers of nucleotides which in turn consist of a base,
a pentose sugar and phosphate moiety Nucleic acids are responsible for the transfer
of characters from parents to offsprings |
1 | 8023-8026 | Deficiency of vitamins
leads to many diseases Rationalised 2023-24
302
Chemistry
Nucleic acids are the polymers of nucleotides which in turn consist of a base,
a pentose sugar and phosphate moiety Nucleic acids are responsible for the transfer
of characters from parents to offsprings There are two types of nucleic acids —
DNA and RNA |
1 | 8024-8027 | Rationalised 2023-24
302
Chemistry
Nucleic acids are the polymers of nucleotides which in turn consist of a base,
a pentose sugar and phosphate moiety Nucleic acids are responsible for the transfer
of characters from parents to offsprings There are two types of nucleic acids —
DNA and RNA DNA contains a five carbon sugar molecule called 2-deoxyribose
whereas RNA contains ribose |
1 | 8025-8028 | Nucleic acids are responsible for the transfer
of characters from parents to offsprings There are two types of nucleic acids —
DNA and RNA DNA contains a five carbon sugar molecule called 2-deoxyribose
whereas RNA contains ribose Both DNA and RNA contain adenine, guanine and
cytosine |
1 | 8026-8029 | There are two types of nucleic acids —
DNA and RNA DNA contains a five carbon sugar molecule called 2-deoxyribose
whereas RNA contains ribose Both DNA and RNA contain adenine, guanine and
cytosine The fourth base is thymine in DNA and uracil in RNA |
1 | 8027-8030 | DNA contains a five carbon sugar molecule called 2-deoxyribose
whereas RNA contains ribose Both DNA and RNA contain adenine, guanine and
cytosine The fourth base is thymine in DNA and uracil in RNA The structure of
DNA is a double strand whereas RNA is a single strand molecule |
1 | 8028-8031 | Both DNA and RNA contain adenine, guanine and
cytosine The fourth base is thymine in DNA and uracil in RNA The structure of
DNA is a double strand whereas RNA is a single strand molecule DNA is the
chemical basis of heredity and have the coded message for proteins to be synthesised
in the cell |
1 | 8029-8032 | The fourth base is thymine in DNA and uracil in RNA The structure of
DNA is a double strand whereas RNA is a single strand molecule DNA is the
chemical basis of heredity and have the coded message for proteins to be synthesised
in the cell There are three types of RNA — mRNA, rRNA and tRNA which actually
carry out the protein synthesis in the cell |
1 | 8030-8033 | The structure of
DNA is a double strand whereas RNA is a single strand molecule DNA is the
chemical basis of heredity and have the coded message for proteins to be synthesised
in the cell There are three types of RNA — mRNA, rRNA and tRNA which actually
carry out the protein synthesis in the cell 10 |
1 | 8031-8034 | DNA is the
chemical basis of heredity and have the coded message for proteins to be synthesised
in the cell There are three types of RNA — mRNA, rRNA and tRNA which actually
carry out the protein synthesis in the cell 10 1
What are monosaccharides |
1 | 8032-8035 | There are three types of RNA — mRNA, rRNA and tRNA which actually
carry out the protein synthesis in the cell 10 1
What are monosaccharides 10 |
1 | 8033-8036 | 10 1
What are monosaccharides 10 2
What are reducing sugars |
1 | 8034-8037 | 1
What are monosaccharides 10 2
What are reducing sugars 10 |
1 | 8035-8038 | 10 2
What are reducing sugars 10 3
Write two main functions of carbohydrates in plants |
1 | 8036-8039 | 2
What are reducing sugars 10 3
Write two main functions of carbohydrates in plants 10 |
1 | 8037-8040 | 10 3
Write two main functions of carbohydrates in plants 10 4
Classify the following into monosaccharides and disaccharides |
1 | 8038-8041 | 3
Write two main functions of carbohydrates in plants 10 4
Classify the following into monosaccharides and disaccharides Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose |
1 | 8039-8042 | 10 4
Classify the following into monosaccharides and disaccharides Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose 10 |
1 | 8040-8043 | 4
Classify the following into monosaccharides and disaccharides Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose 10 5
What do you understand by the term glycosidic linkage |
1 | 8041-8044 | Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose 10 5
What do you understand by the term glycosidic linkage 10 |
1 | 8042-8045 | 10 5
What do you understand by the term glycosidic linkage 10 6
What is glycogen |
1 | 8043-8046 | 5
What do you understand by the term glycosidic linkage 10 6
What is glycogen How is it different from starch |
1 | 8044-8047 | 10 6
What is glycogen How is it different from starch 10 |
1 | 8045-8048 | 6
What is glycogen How is it different from starch 10 7
What are the hydrolysis products of
(i)
sucrose and
(ii)
lactose |
1 | 8046-8049 | How is it different from starch 10 7
What are the hydrolysis products of
(i)
sucrose and
(ii)
lactose 10 |
1 | 8047-8050 | 10 7
What are the hydrolysis products of
(i)
sucrose and
(ii)
lactose 10 8
What is the basic structural difference between starch and cellulose |
1 | 8048-8051 | 7
What are the hydrolysis products of
(i)
sucrose and
(ii)
lactose 10 8
What is the basic structural difference between starch and cellulose 10 |
1 | 8049-8052 | 10 8
What is the basic structural difference between starch and cellulose 10 9
What happens when D-glucose is treated with the following reagents |
1 | 8050-8053 | 8
What is the basic structural difference between starch and cellulose 10 9
What happens when D-glucose is treated with the following reagents (i)
HI
(ii)
Bromine water
(iii)
HNO3
10 |
1 | 8051-8054 | 10 9
What happens when D-glucose is treated with the following reagents (i)
HI
(ii)
Bromine water
(iii)
HNO3
10 10 Enumerate the reactions of D-glucose which cannot be explained by its
open chain structure |
1 | 8052-8055 | 9
What happens when D-glucose is treated with the following reagents (i)
HI
(ii)
Bromine water
(iii)
HNO3
10 10 Enumerate the reactions of D-glucose which cannot be explained by its
open chain structure 10 |
1 | 8053-8056 | (i)
HI
(ii)
Bromine water
(iii)
HNO3
10 10 Enumerate the reactions of D-glucose which cannot be explained by its
open chain structure 10 11 What are essential and non-essential amino acids |
1 | 8054-8057 | 10 Enumerate the reactions of D-glucose which cannot be explained by its
open chain structure 10 11 What are essential and non-essential amino acids Give two examples of
each type |
1 | 8055-8058 | 10 11 What are essential and non-essential amino acids Give two examples of
each type 10 |
1 | 8056-8059 | 11 What are essential and non-essential amino acids Give two examples of
each type 10 12 Define the following as related to proteins
(i)
Peptide linkage
(ii)
Primary structure
(iii)
Denaturation |
1 | 8057-8060 | Give two examples of
each type 10 12 Define the following as related to proteins
(i)
Peptide linkage
(ii)
Primary structure
(iii)
Denaturation 10 |
1 | 8058-8061 | 10 12 Define the following as related to proteins
(i)
Peptide linkage
(ii)
Primary structure
(iii)
Denaturation 10 13 What are the common types of secondary structure of proteins |
1 | 8059-8062 | 12 Define the following as related to proteins
(i)
Peptide linkage
(ii)
Primary structure
(iii)
Denaturation 10 13 What are the common types of secondary structure of proteins 10 |
1 | 8060-8063 | 10 13 What are the common types of secondary structure of proteins 10 14 What type of bonding helps in stabilising the a-helix structure of proteins |
1 | 8061-8064 | 13 What are the common types of secondary structure of proteins 10 14 What type of bonding helps in stabilising the a-helix structure of proteins 10 |
1 | 8062-8065 | 10 14 What type of bonding helps in stabilising the a-helix structure of proteins 10 15 Differentiate between globular and fibrous proteins |
1 | 8063-8066 | 14 What type of bonding helps in stabilising the a-helix structure of proteins 10 15 Differentiate between globular and fibrous proteins 10 |
1 | 8064-8067 | 10 15 Differentiate between globular and fibrous proteins 10 16 How do you explain the amphoteric behaviour of amino acids |
1 | 8065-8068 | 15 Differentiate between globular and fibrous proteins 10 16 How do you explain the amphoteric behaviour of amino acids 10 |
1 | 8066-8069 | 10 16 How do you explain the amphoteric behaviour of amino acids 10 17 What are enzymes |
1 | 8067-8070 | 16 How do you explain the amphoteric behaviour of amino acids 10 17 What are enzymes 10 |
1 | 8068-8071 | 10 17 What are enzymes 10 18 What is the effect of denaturation on the structure of proteins |
1 | 8069-8072 | 17 What are enzymes 10 18 What is the effect of denaturation on the structure of proteins 10 |
1 | 8070-8073 | 10 18 What is the effect of denaturation on the structure of proteins 10 19 How are vitamins classified |
1 | 8071-8074 | 18 What is the effect of denaturation on the structure of proteins 10 19 How are vitamins classified Name the vitamin responsible for the
coagulation of blood |
1 | 8072-8075 | 10 19 How are vitamins classified Name the vitamin responsible for the
coagulation of blood 10 |
1 | 8073-8076 | 19 How are vitamins classified Name the vitamin responsible for the
coagulation of blood 10 20 Why are vitamin A and vitamin C essential to us |
1 | 8074-8077 | Name the vitamin responsible for the
coagulation of blood 10 20 Why are vitamin A and vitamin C essential to us Give their important sources |
1 | 8075-8078 | 10 20 Why are vitamin A and vitamin C essential to us Give their important sources 10 |
1 | 8076-8079 | 20 Why are vitamin A and vitamin C essential to us Give their important sources 10 21 What are nucleic acids |
1 | 8077-8080 | Give their important sources 10 21 What are nucleic acids Mention their two important functions |
1 | 8078-8081 | 10 21 What are nucleic acids Mention their two important functions 10 |
1 | 8079-8082 | 21 What are nucleic acids Mention their two important functions 10 22 What is the difference between a nucleoside and a nucleotide |
1 | 8080-8083 | Mention their two important functions 10 22 What is the difference between a nucleoside and a nucleotide 10 |
1 | 8081-8084 | 10 22 What is the difference between a nucleoside and a nucleotide 10 23 The two strands in DNA are not identical but are complementary |
1 | 8082-8085 | 22 What is the difference between a nucleoside and a nucleotide 10 23 The two strands in DNA are not identical but are complementary Explain |
1 | 8083-8086 | 10 23 The two strands in DNA are not identical but are complementary Explain 10 |
1 | 8084-8087 | 23 The two strands in DNA are not identical but are complementary Explain 10 24 Write the important structural and functional differences between DNA
and RNA |
1 | 8085-8088 | Explain 10 24 Write the important structural and functional differences between DNA
and RNA 10 |
1 | 8086-8089 | 10 24 Write the important structural and functional differences between DNA
and RNA 10 25 What are the different types of RNA found in the cell |
1 | 8087-8090 | 24 Write the important structural and functional differences between DNA
and RNA 10 25 What are the different types of RNA found in the cell Exercises
Exercises
Exercises
Exercises
Exercises
Rationalised 2023-24 |
1 | 1-4 | vProofs are to Mathematics what calligraphy is to poetry Mathematical works do consist of proofs just as
poems do consist of characters — VLADIMIR ARNOLD v
A 1 |
1 | 2-5 | Mathematical works do consist of proofs just as
poems do consist of characters — VLADIMIR ARNOLD v
A 1 1 Introduction
In Classes IX, X and XI, we have learnt about the concepts of a statement, compound
statement, negation, converse and contrapositive of a statement; axioms, conjectures,
theorems and deductive reasoning |
1 | 3-6 | — VLADIMIR ARNOLD v
A 1 1 Introduction
In Classes IX, X and XI, we have learnt about the concepts of a statement, compound
statement, negation, converse and contrapositive of a statement; axioms, conjectures,
theorems and deductive reasoning Here, we will discuss various methods of proving mathematical propositions |
1 | 4-7 | 1 1 Introduction
In Classes IX, X and XI, we have learnt about the concepts of a statement, compound
statement, negation, converse and contrapositive of a statement; axioms, conjectures,
theorems and deductive reasoning Here, we will discuss various methods of proving mathematical propositions A |
1 | 5-8 | 1 Introduction
In Classes IX, X and XI, we have learnt about the concepts of a statement, compound
statement, negation, converse and contrapositive of a statement; axioms, conjectures,
theorems and deductive reasoning Here, we will discuss various methods of proving mathematical propositions A 1 |
1 | 6-9 | Here, we will discuss various methods of proving mathematical propositions A 1 2 What is a Proof |
1 | 7-10 | A 1 2 What is a Proof Proof of a mathematical statement consists of sequence of statements, each statement
being justified with a definition or an axiom or a proposition that is previously established
by the method of deduction using only the allowed logical rules |
1 | 8-11 | 1 2 What is a Proof Proof of a mathematical statement consists of sequence of statements, each statement
being justified with a definition or an axiom or a proposition that is previously established
by the method of deduction using only the allowed logical rules Thus, each proof is a chain of deductive arguments each of which has its premises
and conclusions |
1 | 9-12 | 2 What is a Proof Proof of a mathematical statement consists of sequence of statements, each statement
being justified with a definition or an axiom or a proposition that is previously established
by the method of deduction using only the allowed logical rules Thus, each proof is a chain of deductive arguments each of which has its premises
and conclusions Many a times, we prove a proposition directly from what is given in
the proposition |
1 | 10-13 | Proof of a mathematical statement consists of sequence of statements, each statement
being justified with a definition or an axiom or a proposition that is previously established
by the method of deduction using only the allowed logical rules Thus, each proof is a chain of deductive arguments each of which has its premises
and conclusions Many a times, we prove a proposition directly from what is given in
the proposition But some times it is easier to prove an equivalent proposition rather
than proving the proposition itself |
1 | 11-14 | Thus, each proof is a chain of deductive arguments each of which has its premises
and conclusions Many a times, we prove a proposition directly from what is given in
the proposition But some times it is easier to prove an equivalent proposition rather
than proving the proposition itself This leads to, two ways of proving a proposition
directly or indirectly and the proofs obtained are called direct proof and indirect proof
and further each has three different ways of proving which is discussed below |
1 | 12-15 | Many a times, we prove a proposition directly from what is given in
the proposition But some times it is easier to prove an equivalent proposition rather
than proving the proposition itself This leads to, two ways of proving a proposition
directly or indirectly and the proofs obtained are called direct proof and indirect proof
and further each has three different ways of proving which is discussed below Direct Proof It is the proof of a proposition in which we directly start the proof with
what is given in the proposition |
1 | 13-16 | But some times it is easier to prove an equivalent proposition rather
than proving the proposition itself This leads to, two ways of proving a proposition
directly or indirectly and the proofs obtained are called direct proof and indirect proof
and further each has three different ways of proving which is discussed below Direct Proof It is the proof of a proposition in which we directly start the proof with
what is given in the proposition (i)
Straight forward approach It is a chain of arguments which leads directly from
what is given or assumed, with the help of axioms, definitions or already proved
theorems, to what is to be proved using rules of logic |
1 | 14-17 | This leads to, two ways of proving a proposition
directly or indirectly and the proofs obtained are called direct proof and indirect proof
and further each has three different ways of proving which is discussed below Direct Proof It is the proof of a proposition in which we directly start the proof with
what is given in the proposition (i)
Straight forward approach It is a chain of arguments which leads directly from
what is given or assumed, with the help of axioms, definitions or already proved
theorems, to what is to be proved using rules of logic Consider the following example:
Example 1 Show that if x2 – 5x + 6 = 0, then x = 3 or x = 2 |
1 | 15-18 | Direct Proof It is the proof of a proposition in which we directly start the proof with
what is given in the proposition (i)
Straight forward approach It is a chain of arguments which leads directly from
what is given or assumed, with the help of axioms, definitions or already proved
theorems, to what is to be proved using rules of logic Consider the following example:
Example 1 Show that if x2 – 5x + 6 = 0, then x = 3 or x = 2 Solution x2 – 5x + 6 = 0 (given)
Appendix 1
PROOFS IN MATHEMATICS
Rationalised 2023-24
MATHEMATICS
188
⇒ (x – 3) (x – 2) = 0 (replacing an expression by an equal/equivalent expression)
⇒ x – 3 = 0 or x – 2 = 0 (from the established theorem ab = 0 ⇒ either a = 0 or
b = 0, for a, b in R)
⇒ x – 3 + 3 = 0 + 3 or x – 2 + 2 = 0 + 2 (adding equal quantities on either side of the
equation does not alter the nature of the
equation)
⇒ x + 0 = 3 or x + 0 = 2 (using the identity property of integers under addition)
⇒ x = 3 or x = 2 (using the identity property of integers under addition)
Hence, x2 – 5x + 6 = 0 implies x = 3 or x = 2 |
1 | 16-19 | (i)
Straight forward approach It is a chain of arguments which leads directly from
what is given or assumed, with the help of axioms, definitions or already proved
theorems, to what is to be proved using rules of logic Consider the following example:
Example 1 Show that if x2 – 5x + 6 = 0, then x = 3 or x = 2 Solution x2 – 5x + 6 = 0 (given)
Appendix 1
PROOFS IN MATHEMATICS
Rationalised 2023-24
MATHEMATICS
188
⇒ (x – 3) (x – 2) = 0 (replacing an expression by an equal/equivalent expression)
⇒ x – 3 = 0 or x – 2 = 0 (from the established theorem ab = 0 ⇒ either a = 0 or
b = 0, for a, b in R)
⇒ x – 3 + 3 = 0 + 3 or x – 2 + 2 = 0 + 2 (adding equal quantities on either side of the
equation does not alter the nature of the
equation)
⇒ x + 0 = 3 or x + 0 = 2 (using the identity property of integers under addition)
⇒ x = 3 or x = 2 (using the identity property of integers under addition)
Hence, x2 – 5x + 6 = 0 implies x = 3 or x = 2 Explanation Let p be the given statement “x2 – 5x + 6 = 0” and q be the conclusion
statement “x = 3 or x = 2” |
1 | 17-20 | Consider the following example:
Example 1 Show that if x2 – 5x + 6 = 0, then x = 3 or x = 2 Solution x2 – 5x + 6 = 0 (given)
Appendix 1
PROOFS IN MATHEMATICS
Rationalised 2023-24
MATHEMATICS
188
⇒ (x – 3) (x – 2) = 0 (replacing an expression by an equal/equivalent expression)
⇒ x – 3 = 0 or x – 2 = 0 (from the established theorem ab = 0 ⇒ either a = 0 or
b = 0, for a, b in R)
⇒ x – 3 + 3 = 0 + 3 or x – 2 + 2 = 0 + 2 (adding equal quantities on either side of the
equation does not alter the nature of the
equation)
⇒ x + 0 = 3 or x + 0 = 2 (using the identity property of integers under addition)
⇒ x = 3 or x = 2 (using the identity property of integers under addition)
Hence, x2 – 5x + 6 = 0 implies x = 3 or x = 2 Explanation Let p be the given statement “x2 – 5x + 6 = 0” and q be the conclusion
statement “x = 3 or x = 2” From the statement p, we deduced the statement r : “(x – 3) (x – 2) = 0” by
replacing the expression x2 – 5x + 6 in the statement p by another expression (x – 3)
(x – 2) which is equal to x2 – 5x + 6 |
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