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help-1
79fb7efa5481425584aaa6459f279fc6
838,387,541,270,724,600
ibtrippin
02/02/2022 04:16:14
.close
1
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help-1
1a479ec725aa41e687414f8ba533e64f
813,002,719,539,363,800
Spaghetti Monster
02/02/2022 04:18:30
A digit counter starts from 100. It displays one number every second, from the sequence 100, 110, 120... Another digital counter starts from 1000. It displays one number every second, from the sequence 1000, 985, 970... If the two counters start at the SAME time, after how many seconds do these two counters display the same number?
1
0
null
null
null
null
null
205,837
help-1
1a479ec725aa41e687414f8ba533e64f
813,002,719,539,363,800
Spaghetti Monster
02/02/2022 04:18:36
Any hel?
1
0
null
null
null
null
null
205,837
help-1
1a479ec725aa41e687414f8ba533e64f
813,002,719,539,363,800
Spaghetti Monster
02/02/2022 04:35:20
@Helpers
1
0
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205,837
help-1
1a479ec725aa41e687414f8ba533e64f
329,749,386,315,956,200
Sneaky
02/02/2022 04:38:48
Let n be the number of seconds elapsed, write an expression for the display of each counter and set them equal to each other
0
1
null
null
null
null
null
205,837
help-1
1a479ec725aa41e687414f8ba533e64f
813,002,719,539,363,800
Spaghetti Monster
02/02/2022 04:40:47
aha, i was thinking about that
1
0
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:34:57
@Sneaky wouldn’t that mean there is only 1 solution then
1
0
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205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:34:59
If n = 1
1
0
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:35:06
Since z would have to equal to k
1
0
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:35:09
And k is a real solution
1
0
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
329,749,386,315,956,200
Sneaky
02/02/2022 05:36:59
oh i misread the question sorry i thought it said greater than 1 root. in that case, i can still answer but its a bit harder to give a hint without straight giving the answer.
0
1
null
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null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
329,749,386,315,956,200
Sneaky
02/02/2022 05:37:19
i can give you the straight answer, but my best hint is that it occurs with negative k for a certain n
0
1
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:38:38
So why?
1
0
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:41:12
@Sneaky
1
0
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
329,749,386,315,956,200
Sneaky
02/02/2022 05:41:26
consider k=-1, n=2
0
1
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:41:49
It can only be i^2 or i ‘
1
0
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
329,749,386,315,956,200
Sneaky
02/02/2022 05:42:09
the solutions to that would be -i and i, not i^2 and i
0
1
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
329,749,386,315,956,200
Sneaky
02/02/2022 05:42:17
neither -i nor i is real
0
1
null
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null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:42:35
What about other values for k
1
0
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 05:42:41
Such as K = -4
1
0
null
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null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
329,749,386,315,956,200
Sneaky
02/02/2022 05:44:30
for k=4, there would still be no real solutions, but all you need is one example of a k and n such that z^n=k has no real solutions for 2 to be false
0
1
null
null
null
null
null
205,838
help-1
eff4de52c68c490097f6bf59bec931d1
475,966,350,322,303,000
Brightness
02/02/2022 06:01:51
Okay thanks
1
0
null
null
null
null
null
205,839
help-1
ae180dfbca784e22ae4a21ad2f8843f1
733,250,395,949,760,500
leadersheir
02/02/2022 06:06:59
Is it trivial that if two matrices are equal (no I don't mean equivalent) then their components are also equal? $$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} = \begin{pmatrix} e & f \\ g & h \end{pmatrix} \implies a=e, \text{ } b=f, \text{ } c=g, \text{ } d=h \quad ? $$
1
0
null
null
null
null
null
205,839
help-1
ae180dfbca784e22ae4a21ad2f8843f1
510,789,298,321,096,700
TeXit
02/02/2022 06:07:02
**leadersheir**
https://cdn.discordapp.c…395949760512.png
733250395949760512.png
0
1
null
null
null
null
null
205,839
help-1
ae180dfbca784e22ae4a21ad2f8843f1
733,250,395,949,760,500
leadersheir
02/02/2022 06:07:25
If not trivial, then what's the property that implies it?
1
0
null
null
null
null
null
205,839
help-1
ae180dfbca784e22ae4a21ad2f8843f1
183,668,144,404,037,630
Ann
02/02/2022 06:08:27
it is trivial
0
1
null
null
null
null
null
205,839
help-1
ae180dfbca784e22ae4a21ad2f8843f1
183,668,144,404,037,630
Ann
02/02/2022 06:08:38
that is literally what equality of matrices means
0
1
null
null
null
null
null
205,839
help-1
ae180dfbca784e22ae4a21ad2f8843f1
808,989,291,018,977,300
dhabu
02/02/2022 06:10:48
https://cdn.discordapp.c…20202_163955.jpg
IMG_20220202_163955.jpg
0
1
null
null
null
null
null
205,839
help-1
ae180dfbca784e22ae4a21ad2f8843f1
183,668,144,404,037,630
Ann
02/02/2022 06:11:21
@dhabu please post your question in an **available** channel.
0
1
null
null
null
null
null
205,839
help-1
ae180dfbca784e22ae4a21ad2f8843f1
733,250,395,949,760,500
leadersheir
02/02/2022 06:18:56
i don't think i'd explicitly learned that in any of my linalg lessons.. thank u 🙌
1
0
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
234,323,571,659,374,600
Ignobil
02/02/2022 06:59:38
Hello, this is probably basic math but my math is bad, if I have 2.81ml of 1 substance for every 1ml of another substance in a 1L bottle, how can I know the exact volumes of each substance ? This is from a chem exercise, I pretty much did the whole exercise but I got stuck in this part
1
0
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:00:34
the substances are in a ratio of 2.81 : 1
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:00:59
so there are 3.81 parts in total by volume, thus one part is (1000/3.81) mL
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:01:01
,calc 1000/3.81
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
510,789,298,321,096,700
TeXit
02/02/2022 07:01:02
Result: ``` 262.46719160105 ```
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
234,323,571,659,374,600
Ignobil
02/02/2022 07:01:11
oh it's that simple
1
0
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:01:15
yes it is that simple
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
234,323,571,659,374,600
Ignobil
02/02/2022 07:01:18
Damn thanks
1
0
475,966,350,322,303,000
Brightness
4998
Brightness
false
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:01:24
this is also the amount of the second substance
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:01:28
262 mL
0
1
475,966,350,322,303,000
Brightness
4998
Brightness
false
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:01:30
the rest is the first
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
234,323,571,659,374,600
Ignobil
02/02/2022 07:01:47
thanks a lot
1
0
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
863,039,006,753,030,100
MonstrousMoonshineConjecture
02/02/2022 07:07:36
https://cdn.discordapp.c…20202_173704.jpg
20220202_173704.jpg
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
863,039,006,753,030,100
MonstrousMoonshineConjecture
02/02/2022 07:07:50
https://cdn.discordapp.c…20202_173722.jpg
20220202_173722.jpg
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
863,039,006,753,030,100
MonstrousMoonshineConjecture
02/02/2022 07:07:51
I'm unable to understand how this question has been solved
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
863,039,006,753,030,100
MonstrousMoonshineConjecture
02/02/2022 07:07:59
Eg 3 in above image
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:09:27
@MonstrousMoonshineConjecture please post your question in an **available** channel.
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
183,668,144,404,037,630
Ann
02/02/2022 07:09:37
@Ignobil do you have anything else to ask? otherwise you should close this channel with `.close`
0
1
null
null
null
null
null
205,840
help-1
8c9a7d0023574df58b6fd3ab457d0999
234,323,571,659,374,600
Ignobil
02/02/2022 07:10:32
.close
1
0
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
863,039,006,753,030,100
MonstrousMoonshineConjecture
02/02/2022 07:10:33
Oh okay
1
0
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
863,039,006,753,030,100
MonstrousMoonshineConjecture
02/02/2022 07:10:51
Ah may I ask here itself then
1
0
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
234,323,571,659,374,600
Ignobil
02/02/2022 07:11:04
There's 3 rooms available
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
234,323,571,659,374,600
Ignobil
02/02/2022 07:11:11
9, 18 and 26
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
863,039,006,753,030,100
MonstrousMoonshineConjecture
02/02/2022 07:11:12
Okok
1
0
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
360,764,798,775,984,100
Acid
02/02/2022 07:17:06
need help with the last part
https://cdn.discordapp.c…0aef31e3dc8f.png
abd0e136-cc4f-46b7-b42e-0aef31e3dc8f.png
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
360,764,798,775,984,100
Acid
02/02/2022 07:17:20
this is what i did for first 2
https://cdn.discordapp.c…c638eb2407a4.png
5a5a3e5e-05e6-438c-98c8-c638eb2407a4.png
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
456,226,577,798,135,800
Deleted User
02/02/2022 07:20:20
u know formula of distance between a plane and a given point
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
360,764,798,775,984,100
Acid
02/02/2022 07:20:50
ye
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
360,764,798,775,984,100
Acid
02/02/2022 07:24:15
https://cdn.discordapp.c…20202_172345.jpg
20220202_172345.jpg
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
456,226,577,798,135,800
Deleted User
02/02/2022 07:25:22
assume a point on the plane
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
456,226,577,798,135,800
Deleted User
02/02/2022 07:26:40
then the vector joining the point and the point on line (in terms of a and lambda) should pe parallel to normal vector of plane and perpendicular to line vector
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
360,764,798,775,984,100
Acid
02/02/2022 07:26:47
got it thx, i tried this i accidentally made an arithematic mistake so got confused
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
456,226,577,798,135,800
Deleted User
02/02/2022 07:27:09
ohk
0
1
null
null
null
null
null
205,841
help-1
12916a7fcb244ab0848e03997c23afb8
360,764,798,775,984,100
Acid
02/02/2022 07:27:19
.close
0
1
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 03:59:11
hey. how to prove that for 2 square matrices A,B, lambda is an eigenvalue of AB iff it is an eigenvalue of BA? thanks
1
0
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
265,853,506,664,136,700
ScapeProf
12/24/2021 04:02:27
Do you mean of BA?
0
1
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:11:45
yes BA* sorry
1
0
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:11:52
mistyped
1
0
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
784,379,609,973,522,400
Hanjihakawa
12/24/2021 04:11:53
guys where can I send some links
0
1
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:12:00
def not here
1
0
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
265,853,506,664,136,700
ScapeProf
12/24/2021 04:12:26
Use the definition of eigenvalue
0
1
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
784,379,609,973,522,400
Hanjihakawa
12/24/2021 04:12:35
where can i send
0
1
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
784,379,609,973,522,400
Hanjihakawa
12/24/2021 04:12:41
this server have like 100 channel
0
1
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:12:53
hmm
1
0
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:14:21
i'll think
1
0
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:14:35
thanks
1
0
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:14:41
also another linalg question:
1
0
null
null
null
null
null
205,842
help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:15:47
let M be a symmetric and positive definite matrix, this formula defines a scalar product
https://cdn.discordapp.c…1280/unknown.png
unknown.png
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e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:16:12
https://cdn.discordapp.c…2952/unknown.png
unknown.png
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:16:28
we define an induced norm ^
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e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 04:17:15
how to write this with the formula for M norm?
https://cdn.discordapp.c…9968/unknown.png
unknown.png
1
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
183,668,144,404,037,630
Ann
12/24/2021 04:47:47
$\mathbf{(Ax-b)^{\top}M(Ax-b)}$...
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e6958b76cd72420d9536f31d4cbeb5f4
183,668,144,404,037,630
Ann
12/24/2021 04:47:56
if you were not able to plug it in yourself
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e6958b76cd72420d9536f31d4cbeb5f4
510,789,298,321,096,700
TeXit
12/24/2021 04:49:25
**Kanga Gang Annihilator Ann**
https://cdn.discordapp.c…144404037632.png
183668144404037632.png
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e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 05:01:18
ah lol it's just this actually 😂
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 05:01:20
thanks!
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e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 05:03:09
also how to do the spectral decomposition of M?
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
183,668,144,404,037,630
Ann
12/24/2021 05:04:51
wym by "how to do"?
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 05:32:09
the question was asking that
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 05:33:23
https://cdn.discordapp.c…3098/unknown.png
unknown.png
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e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 05:33:45
sorry it looks weird but that's just formatting problems after I used a translator
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
183,668,144,404,037,630
Ann
12/24/2021 05:34:57
what language did you translate from?
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
183,668,144,404,037,630
Ann
12/24/2021 05:35:12
anyway, i think you will need to make notations for the eigenvalues and eigenvectors of M
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 05:37:02
german 😂
1
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help-1
e6958b76cd72420d9536f31d4cbeb5f4
876,550,410,767,323,100
bandbee
12/24/2021 05:37:17
hmm i see
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1ae4fe83f1254a3c92c9250830c20d59
802,867,365,431,345,200
Eric B
02/02/2022 08:04:24
Need help with a Calc 2 problem. Thanks
https://cdn.discordapp.c…Discussion31.png
Discussion31.png
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help-1
1ae4fe83f1254a3c92c9250830c20d59
802,867,365,431,345,200
Eric B
02/02/2022 08:04:49
I'm guessing this would be a U sub problem?
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1ae4fe83f1254a3c92c9250830c20d59
802,867,365,431,345,200
Eric B
02/02/2022 08:05:50
Whoops sorry, looks like this room is occupied by .o
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1ae4fe83f1254a3c92c9250830c20d59
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MARS
02/02/2022 09:25:39
https://cdn.discordapp.c…20202_162433.jpg
IMG_20220202_162433.jpg
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TeXit
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1ae4fe83f1254a3c92c9250830c20d59
142,317,394,117,918,720
MARS
02/02/2022 09:26:03
Hello. How is this directed graph correct? Shouldn't d and e also be pointing to g?
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