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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:29:13
Well, this was my first attempt, what do you mean by the finite field? Like what would I change?
https://cdn.discordapp.c…20201_102828.jpg
20220201_102828.jpg
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:29:20
Not sure what the finite field is
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:29:37
it's the Z7
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:29:45
Ahhh
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:31:33
So then I first multiply everything by 7? But that wouldnt make sense 🤔
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:32:27
no, yeah, try to make the multiplication table for the Z7 first
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:32:58
if you multiply everything by 7, it's like multiplying everything by 0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:33:08
by 1
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:33:11
Z7 is the integers mod 7
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1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:33:31
$7\equiv0(mod 7)$
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help-1
3cb2f7639f2549b1a75e0907763ac032
510,789,298,321,096,700
TeXit
02/01/2022 04:33:33
**Sepdron**
https://cdn.discordapp.c…421743554570.png
595185421743554570.png
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:33:55
hmmm
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:35:32
I still dont get it :/
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:35:42
I know what mod 7 does
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:35:51
But I dont know how to apply it in that matrix
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:36:01
it's the remainder after the division
0
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:36:32
oh, i read that as i don't know
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:38:18
:/
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:39:43
ok, so, can you make the multiplication table for Z7?
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:43:33
Not really
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:43:46
Ahhhhh
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:44:10
Do I need to just use the mod 7 on every single number there perhaps? 🤔
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:45:49
maybe that'll work, and instead of dividing, you multiply it by its multiplicative inverse
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:47:51
also, the multiplication table for Z7 is just like a normal multiplication table, but from 1 to 6 because after that I'll come back because of the mod 7 and the result is also mod 7
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:49:01
But how will I know whetherr thats correct and whether I will get the correct answers for that?
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:49:58
well, put the x1, x2, and x3 back into there and see if the result is the same
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:51:28
oh... Yeah true, mb
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:53:13
also, it shouldn't have a number outside of Z7
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:53:52
Yes, but Is -1 to -6 also in that Z7 zone?
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:54:06
prrobably not right?
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:54:24
you can add 7 to it and I'll be in it
0
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 04:54:43
like $-1\equiv6 (mod 7)$
0
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
510,789,298,321,096,700
TeXit
02/01/2022 04:54:45
**Sepdron**
https://cdn.discordapp.c…421743554570.png
595185421743554570.png
0
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 04:54:53
ahh okay
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:02:02
Wait
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:02:19
I got a point numberr
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:02:27
and that shouldnt be in the zone
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:02:39
yup, only integers
0
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:03:28
did you divide?
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:03:42
Yes, I needed to divide
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:05:19
https://cdn.discordapp.c…20201_110500.jpg
20220201_110500.jpg
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:06:00
instead of dividing you need to find a number y such that\\ $x*y=1\ \text{(mod 7)}$
0
1
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TeXit
0796
TeXit
true
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
510,789,298,321,096,700
TeXit
02/01/2022 05:06:21
**Sepdron**
https://cdn.discordapp.c…421743554570.png
595185421743554570.png
0
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:08:18
also, that's not how you read the x1, x2, or x3, you need to solve it to where each collum only have one number that's not 0 and all the others are 0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:09:03
aahhh
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:09:04
okay
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:09:06
I got it
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:09:30
I got the last part
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:09:50
But I didnt understand how to fix the point number thing
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:10:01
Here you can see my process
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:11:28
that's why it's easier if we have the multiplication table, so make something like this, and fill it in
https://cdn.discordapp.c…20201_171058.jpg
IMG_20220201_171058.jpg
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:11:39
okay
1
0
null
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:11:41
mod 7 of course
0
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:15:16
https://cdn.discordapp.c…20201_111509.jpg
20220201_111509.jpg
1
0
null
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null
null
null
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:16:38
yup, that's right
0
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:17:37
so, to find which number you have to multiply in order to get 1 you just start at that number and go right or down until you get to 1
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:18:45
im so confused rn
1
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:20:03
so, like for 4, you can multiply it by 2 and get 1
https://cdn.discordapp.c…20201_171922.jpg
IMG_20220201_171922.jpg
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:20:37
ah, yeah
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:27:31
I think I got it
1
0
610,829,937,292,869,600
Skull
9402
Skull
false
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:28:09
https://cdn.discordapp.c…20201_112801.jpg
20220201_112801.jpg
1
0
null
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null
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:29:15
whoops, I meant to write x3 as "1"
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:29:23
But its still wrong it seems
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:30:47
Because 6\*1+3\*2+3\*1 equals 15, which would be correct if I use mod 7 on it, since it needs to be 1
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:30:48
BUT
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:31:32
2\*1+5\*2+1*1=13 mod 7 is NOT 3
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:32:00
and also
1
0
null
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:32:46
1\*1+2\*2+1\*1=6 mod 7 also isnt 1
1
0
null
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help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:32:55
So only the first row would be right
1
0
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help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:33:02
yeah, that's not the one that i got
0
1
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:33:10
lemme see your thing
0
1
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null
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:37:43
so, i see a mistake in step 4 3*3 isn't 1
0
1
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謝墨離
3191
謝墨離
false
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:38:00
oh
1
0
null
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null
null
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:38:03
..
1
0
null
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null
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:38:05
rip
1
0
706,934,233,012,371,600
Ansh_
3502
Arya
false
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:38:07
Thanks
1
0
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:38:16
Didnt sleep much
1
0
null
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null
205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 05:49:31
Did I make another mistake again?
https://cdn.discordapp.c…20201_114913.jpg
20220201_114913.jpg
1
0
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:57:43
i think so, step 5 part 2
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 05:58:13
the II-III•6
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1
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 06:06:09
YES
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0
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 06:06:13
I finally got it right
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0
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 06:06:15
Thanks man
1
0
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 06:12:40
woow, nice
0
1
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 06:12:42
Then to my next task, how would I solve "Give the generator polynomials and the corresponding generator matrices and control polynomials of all 6-digit cyclic codes with 3 control digits over Z5." I tried searching on google and youtube, and I did indeed find stuff that relates to that, but 1. not on my main language, so its pretty hard to understand, and 2. they dont explain it very well
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 06:14:00
ok, i also need to google what some of the stuff there means
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 06:14:42
idk, i tried to find stuff, but they literally would tell me about someting entirely else
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
236,549,522,178,834,430
Revogue
02/01/2022 06:15:05
*or they just didnt explain it very well*
1
0
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 06:39:46
have you seen this video? https://youtu.be/1tRJrcfES5I i watched it and i think i got it, I'm not sure though
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 06:42:43
do you have a way to verify the answer? because I'm not sure if i got it
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1
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
321,445,119,171,756,000
Shuri2060
02/01/2022 07:17:05
To verify plug it back in?
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1
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
595,185,421,743,554,600
Sepdron
02/01/2022 07:19:16
it's that thing now
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1
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205,813
help-1
3cb2f7639f2549b1a75e0907763ac032
321,445,119,171,756,000
Shuri2060
02/01/2022 07:20:12
oh sry
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1
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205,814
help-1
9bf6da8a75f2418a9ec232ab0d559240
456,226,577,798,135,800
Deleted User
02/01/2022 08:25:08
https://cdn.discordapp.c…2855/unknown.png
unknown.png
1
0
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205,814
help-1
9bf6da8a75f2418a9ec232ab0d559240
456,226,577,798,135,800
Deleted User
02/01/2022 08:25:11
@Ansh_
1
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205,814
help-1
9bf6da8a75f2418a9ec232ab0d559240
456,226,577,798,135,800
Deleted User
02/01/2022 08:25:29
The answer isn't anything like that, nor have I learnt derivatives
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205,814
help-1
9bf6da8a75f2418a9ec232ab0d559240
456,226,577,798,135,800
Deleted User
02/01/2022 08:25:35
Apparently it's 5.49
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0
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205,814
help-1
9bf6da8a75f2418a9ec232ab0d559240
456,226,577,798,135,800
Deleted User
02/01/2022 08:25:44
And therefore h is like 14.51 or something
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205,814
help-1
9bf6da8a75f2418a9ec232ab0d559240
456,226,577,798,135,800
Deleted User
02/01/2022 08:25:49
I'll go check what its actually
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205,814
help-1
9bf6da8a75f2418a9ec232ab0d559240
456,226,577,798,135,800
Deleted User
02/01/2022 08:26:09
https://cdn.discordapp.c…6114/unknown.png
unknown.png
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