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help-10
14995a822508478babe1031aa07c33dd
770,490,671,827,910,700
CS
03/05/2022 23:36:23
In this question they're using the formula pi r^2 divided by 2. I am confused that for what that formula is used. What are they finding by using the formula
https://cdn.discordapp.c…6_093221_HDR.jpg
IMG_20220306_093221_HDR.jpg
1
0
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
261,933,205,387,477,000
riemann
03/05/2022 23:37:53
surface area of a cylinder
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
331,558,346,333,224,960
jan Niku
03/05/2022 23:37:56
warning im p sure this books last formula was incorrect
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
331,558,346,333,224,960
jan Niku
03/05/2022 23:38:00
if someone is answerin
0
1
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null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
331,558,346,333,224,960
jan Niku
03/05/2022 23:38:05
so not a good track record
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
261,933,205,387,477,000
riemann
03/05/2022 23:38:29
https://cdn.discordapp.c…t_8.38.26_PM.png
Screen_Shot_2022-03-05_at_8.38.26_PM.png
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
261,933,205,387,477,000
riemann
03/05/2022 23:38:42
what the heck is upper
0
1
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null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
200,013,547,491,688,450
a disappointing son
03/05/2022 23:39:04
i think it used the wrong formula for surface area of the semisphere
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
200,013,547,491,688,450
a disappointing son
03/05/2022 23:39:19
which is a word i just made up btw
0
1
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null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
261,933,205,387,477,000
riemann
03/05/2022 23:39:26
hemisphere area should be (4 pi r^2) / 2
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
200,013,547,491,688,450
a disappointing son
03/05/2022 23:39:27
claiming it as my own
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
521,464,336,284,254,200
Gamer Dio
03/05/2022 23:39:47
Bro πr²h is volume. It ain't even the right units
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
521,464,336,284,254,200
Gamer Dio
03/05/2022 23:39:57
What is your book
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
200,013,547,491,688,450
a disappointing son
03/05/2022 23:40:08
lmfao that too
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
200,013,547,491,688,450
a disappointing son
03/05/2022 23:40:42
is it using 22/7 to approximate pi wtf
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
770,490,671,827,910,700
CS
03/05/2022 23:55:23
So if the book is wrong then how should I solve it
1
0
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null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
828,645,428,765,524,000
piang
03/06/2022 00:02:58
:bleak: πr²h is volume
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
261,933,205,387,477,000
riemann
03/06/2022 00:08:05
What do you mean approximation. It's exact! #im-from-year-500-bc
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
740,835,454,357,602,300
ashish
03/06/2022 00:09:54
It could be misprinted
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
770,490,671,827,910,700
CS
03/06/2022 00:15:05
So I am supposed to find the surface area of the shape by adding the surface area of cylinder and surface area of hemisphere?
https://cdn.discordapp.c…6_093141_HDR.jpg
IMG_20220306_093141_HDR.jpg
1
0
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
828,645,428,765,524,000
piang
03/06/2022 00:15:12
They do approximate like this in middle school
0
1
null
null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
828,645,428,765,524,000
piang
03/06/2022 00:15:30
Yes
0
1
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null
null
null
null
1,055
help-10
14995a822508478babe1031aa07c33dd
770,490,671,827,910,700
CS
03/06/2022 00:16:16
Okay thanks
1
0
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1,055
help-10
14995a822508478babe1031aa07c33dd
770,490,671,827,910,700
CS
03/06/2022 00:16:21
.close
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 00:50:51
https://cdn.discordapp.c…5572/unknown.png
unknown.png
1
0
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null
null
null
null
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 00:50:58
https://cdn.discordapp.c…8926/unknown.png
unknown.png
1
0
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null
null
null
null
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 00:51:04
i am really confused on how to sketch this 😦
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 00:57:16
carefully
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 00:57:26
https://cdn.discordapp.c…1230/unknown.png
unknown.png
0
1
null
null
null
null
null
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 00:57:28
heres what i got
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1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 00:57:33
lookin kinda paraboloidy
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770,490,671,827,910,700
CS
5167
CS
false
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 00:58:15
which, yea
https://cdn.discordapp.c…1914/unknown.png
unknown.png
0
1
200,013,547,491,688,450
a disappointing son
0540
a disappointing son
false
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 00:58:31
did i draw mine wrong? :HuTao_cry:
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 00:58:44
wait i should try to set every variable to 0?
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:00:08
thats what id do
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261,933,205,387,477,000
riemann
2529
riemann
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:00:18
the youre just graphing in a plane
0
1
770,490,671,827,910,700
CS
5167
CS
false
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:00:37
and dont solve them explicitly
0
1
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null
null
null
null
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:00:45
if it can be avoided
0
1
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null
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null
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:00:55
graph them using your head
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:01:30
like clearly x=0 giving 0 =y² +3z² is a single point and not a curve
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:02:18
its a single point?
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:02:34
yea
0
1
181,493,658,212,630,530
Kuri
4332
Kuri
false
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:02:38
i thought you can try solving for z but it ended with negative root
1
0
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null
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:02:54
i didnt know what to do there
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:03:15
its hard for me to do it in my head
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:03:21
im way too used to 2 dimensional graphinh
1
0
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null
null
null
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:03:29
and i just try to make it perpendicular
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:03:37
lol my corputer crashed now discord wont start
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:03:39
awesome
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:03:44
:sweatyu:
1
0
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null
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:03:50
why?
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:04:46
nice
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:04:48
were back in action
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:04:59
so fantastic news is it is 2 d graphing :happy:
0
1
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null
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:05:05
we can do through
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:05:20
do you see how z=0 gives x=y^2?
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:06:17
yes
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:06:27
and that this solution lays in the xy plane?
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:07:46
which makes it like 2d graphing
0
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331,558,346,333,224,960
jan Niku
2119
jan Niku
false
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:07:49
only a little skewed
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help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:10:59
https://cdn.discordapp.c…3742/unknown.png
unknown.png
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:11:08
wait when i rewrite it would it jut be the same graph? :xD:
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:11:12
i think that was my mistake
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:11:25
yes
1
0
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help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:11:41
yeah what im understanding is draw it in 2-d and try to place it perpendicular to each other
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:03
dont change it to y=sqrt x
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1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:12
its x=y^2
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:18
,w graph x=y^2
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Kuri
4332
Kuri
false
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help-10
c26880605aaa4a73b845222ecbcd8906
510,789,298,321,096,700
TeXit
03/06/2022 01:12:20
Results provided by WolframAlpha
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help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:12:27
yeah
1
0
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help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:12:28
:Sadge:
1
0
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:34
what sadge
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1
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:38
sadge at me
0
1
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:39
?
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:41
:sadcat:
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help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:12:42
no sadge at me
1
0
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:45
oh
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:47
youre doin great
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1
331,558,346,333,224,960
jan Niku
2119
jan Niku
false
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:49
halfway there
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1
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jan Niku
2119
jan Niku
false
1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:12:51
or thirdway there idk
0
1
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null
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:12:56
XD
1
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:13:02
same graph?
0
1
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:13:15
yeah what you showed me here
1
0
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:13:33
yup
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:13:44
its just a parabola
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:13:48
so is the uhh
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:13:50
y=0 part
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:14:09
ok so its best to set every component to 0 right?
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:14:15
one by one, yea
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:14:20
theres three intersecting planes
0
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1,056
help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:14:30
so the hope is you get three curves
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:14:35
and together they sort of form a picture
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help-10
c26880605aaa4a73b845222ecbcd8906
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Kuri
03/06/2022 01:14:36
ok let me try
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help-10
c26880605aaa4a73b845222ecbcd8906
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Kuri
03/06/2022 01:14:39
again
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:14:40
it doesnt always happen but usually it does
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help-10
c26880605aaa4a73b845222ecbcd8906
331,558,346,333,224,960
jan Niku
03/06/2022 01:14:41
okay
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help-10
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Kuri
03/06/2022 01:20:39
https://cdn.discordapp.c…4448/unknown.png
unknown.png
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TeXit
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TeXit
true
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help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:20:40
ah okok
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help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:20:52
this looks alot clearer now
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help-10
c26880605aaa4a73b845222ecbcd8906
181,493,658,212,630,530
Kuri
03/06/2022 01:21:01
let me try another problem
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