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help-10
9ab8f79340fd46928b26ee7b4fe71bbb
686,586,658,237,317,200
brick
01/16/2022 13:41:04
oh okay
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9ab8f79340fd46928b26ee7b4fe71bbb
686,586,658,237,317,200
brick
01/16/2022 13:41:07
ty
1
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help-10
9ab8f79340fd46928b26ee7b4fe71bbb
686,586,658,237,317,200
brick
01/16/2022 13:41:11
.close
1
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help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:47:15
https://cdn.discordapp.c…4818/unknown.png
unknown.png
1
0
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null
null
null
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help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:47:23
How do i solve this?
1
0
null
null
null
null
null
97
help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:47:32
I figured out that the center of the circle is (2,-1)
1
0
null
null
null
null
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help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:47:44
but radius is not known so i tried using the distance formula and got
1
0
null
null
null
null
null
97
help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:48:02
https://cdn.discordapp.c…8685/unknown.png
unknown.png
1
0
null
null
null
null
null
97
help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:48:33
and then powered it by 2 to get r^2 which is 40
1
0
null
null
null
null
null
97
help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:48:46
but that looks wrong
1
0
null
null
null
null
null
97
help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:50:17
i got radius 5
1
0
null
null
null
null
null
97
help-10
09f5888360bb431f940fb3160572b037
456,226,577,798,135,800
Deleted User
01/16/2022 13:50:24
by just using completing like square
1
0
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:23:16
https://cdn.discordapp.c…nvas_Student.jpg
SmartSelect_20220116-202311_Canvas_Student.jpg
1
0
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:23:38
How do I approach this problem?
1
0
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
485,903,210,272,391,200
dldh06
01/16/2022 14:23:51
Do you know least squares method?
0
1
null
null
null
null
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98
help-10
58510979f7c247d8bae3aa76a4e7465b
485,903,210,272,391,200
dldh06
01/16/2022 14:28:12
@øst
0
1
808,388,164,107,763,700
øst
8857
øst
false
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:29:27
No I'm going through last years exam
1
0
485,903,210,272,391,200
dldh06
2659
dldh06
false
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:29:41
I start the class in a week
1
0
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:29:54
:kekleo:
1
0
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
485,903,210,272,391,200
dldh06
01/16/2022 14:30:06
General form, Ax = b and it's an overdetermined system
0
1
null
null
null
null
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98
help-10
58510979f7c247d8bae3aa76a4e7465b
485,903,210,272,391,200
dldh06
01/16/2022 14:30:40
You do $$A^{T}Ax = A^{T}b$$
0
1
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
510,789,298,321,096,700
TeXit
01/16/2022 14:30:43
**dldh06**
https://cdn.discordapp.c…210272391178.png
485903210272391178.png
0
1
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:31:18
https://cdn.discordapp.c…amsung_Notes.jpg
SmartSelect_20220116-203113_Samsung_Notes.jpg
1
0
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
485,903,210,272,391,200
dldh06
01/16/2022 14:31:24
Then $x = (A^{T}A)^{-1}A^{T}b$
0
1
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:31:42
Is what I did so far
1
0
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
510,789,298,321,096,700
TeXit
01/16/2022 14:31:54
**dldh06**
https://cdn.discordapp.c…210272391178.png
485903210272391178.png
0
1
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
485,903,210,272,391,200
dldh06
01/16/2022 14:33:05
So do $$A^{T}Ax = A^{T}b$$ first
0
1
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
510,789,298,321,096,700
TeXit
01/16/2022 14:33:08
**dldh06**
https://cdn.discordapp.c…210272391178.png
485903210272391178.png
0
1
null
null
null
null
null
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:33:47
Okay this is similar to a regression
1
0
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null
null
null
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98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:34:14
TY @dldh06
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485,903,210,272,391,200
dldh06
2659
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false
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:34:23
. Close
1
0
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null
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98
help-10
58510979f7c247d8bae3aa76a4e7465b
485,903,210,272,391,200
dldh06
01/16/2022 14:34:35
```.close```
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808,388,164,107,763,700
øst
8857
øst
false
98
help-10
58510979f7c247d8bae3aa76a4e7465b
808,388,164,107,763,700
øst
01/16/2022 14:34:51
.close
1
0
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null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
276,723,046,767,919,100
Khazali
01/16/2022 14:35:02
i think we can use an augmented matrix to represent a system of equations and use gaus-jordan elimination to find the solutions
1
0
808,388,164,107,763,700
øst
8857
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99
help-10
89be91d961bf4fedad6b8a1efde1d861
276,723,046,767,919,100
Khazali
01/16/2022 14:35:11
oh sorry it's been closed
1
0
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help-10
89be91d961bf4fedad6b8a1efde1d861
485,903,210,272,391,200
dldh06
01/16/2022 14:35:45
It's overdetermined
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276,723,046,767,919,100
Khazali
0243
Khazali
false
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 15:58:21
how do i draw a graph for f'
https://cdn.discordapp.c…96e058e3f310.png
de6e4bcb21999d4458b596e058e3f310.png
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 15:58:43
https://cdn.discordapp.c…0032/unknown.png
unknown.png
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1
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 15:58:46
describe to me the slope
0
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 15:58:50
at points 1, 2, 3
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1
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help-10
89be91d961bf4fedad6b8a1efde1d861
485,903,210,272,391,200
dldh06
01/16/2022 15:59:04
How did you number so fast?
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Shuri2060
9525
a μ-er
false
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 15:59:09
ShareX?
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 15:59:12
its decreasing in 1, at a stop in 2 and rising in 3
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 15:59:16
ok
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 15:59:25
So what u just said
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 15:59:33
will describe how f' acts
0
1
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99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 15:59:38
have u heard of sign diagrams?
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 15:59:56
no
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:00:06
ah well, what u described to me now
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:00:08
is like a sign diagram
0
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:00:30
Could you try to draw a graph of f' based on what u said? try
0
1
289,821,695,265,472,500
Morgan Freeman
4218
Morgan Freeman
false
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:00:43
f' represents the slope
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:01:03
alright, but wint it just look like the other graph
0
1
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null
null
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:01:12
Lets start with (1)
0
1
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null
null
null
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99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:01:16
You said 'decreasing'
0
1
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null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:01:20
That means f' is negative
0
1
null
null
null
null
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99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:01:27
So for starters, that doesn't match up
0
1
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null
null
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:02:01
https://cdn.discordapp.c…ea931cec12a2.png
3e2b95dc299790727521ea931cec12a2.png
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:02:12
The bit where I've marked 1
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:02:16
Is positive on your graph
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:02:21
oh
0
1
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:02:27
yeah that makes sense
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:02:36
https://cdn.discordapp.c…8468/unknown.png
unknown.png
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1
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null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:03:10
what?
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:03:57
I'm commenting about this
0
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:04:08
You drew that bit positive (when it should be negative)
0
1
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null
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99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:04:16
ignore if u get it 😅
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289,821,695,265,472,500
Morgan Freeman
4218
Morgan Freeman
false
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:05:08
alright im lost
0
1
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null
null
null
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99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:05:15
what do you want me to do again
0
1
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null
null
null
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99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:05:57
https://cdn.discordapp.c…96e058e3f310.png
de6e4bcb21999d4458b596e058e3f310.png
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:06:01
This is your original function
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:06:06
yes
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:06:09
Think about which part of it has negative slope
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:06:37
the part under the x-axis
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:06:40
no
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:06:45
the slope describes how steep
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:06:47
the curve is
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:07:30
so the part that has a neagtive slope is from:
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:08:16
https://i.gyazo.com/107f…919ff931dbe9.png
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:08:22
here to there
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:08:24
yes
0
1
null
null
null
null
null
99
help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:08:31
Do you also notice how the slope
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:08:35
is getting less and less negative
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:08:40
until its 0
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:08:57
Hope that helps you draw the graph of f' left of that point
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:09:11
no not really
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:09:25
so let me try again
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:09:35
https://cdn.discordapp.c…6136/unknown.png
unknown.png
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:09:37
Ok so if you have a graph of f'
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:09:42
The line you draw
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:09:47
Can only be in the bit I colored in
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:09:50
for the left part
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:09:53
Do you agree?
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:10:00
yes
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:10:06
And also, it has to hit 0
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:10:14
at the dotted line
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:10:34
https://cdn.discordapp.c…7b64b7b6d513.png
0186cce14d8415d486f17b64b7b6d513.png
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help-10
89be91d961bf4fedad6b8a1efde1d861
289,821,695,265,472,500
Morgan Freeman
01/16/2022 16:10:36
like this
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:11:36
You've draw the tangent
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help-10
89be91d961bf4fedad6b8a1efde1d861
321,445,119,171,756,000
Shuri2060
01/16/2022 16:11:44
at that point of the curve
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