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help-10
86f76e6169d74990a81ee349c155b037
649,984,702,010,359,800
leonard
01/24/2022 12:16:05
its an even function
0
1
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help-10
86f76e6169d74990a81ee349c155b037
649,984,702,010,359,800
leonard
01/24/2022 12:16:08
🥲
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help-10
86f76e6169d74990a81ee349c155b037
165,487,715,087,941,630
Deleted_User
01/24/2022 12:16:17
how do u properly indicate it
1
0
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help-10
86f76e6169d74990a81ee349c155b037
649,984,702,010,359,800
leonard
01/24/2022 12:16:21
wdym
0
1
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help-10
86f76e6169d74990a81ee349c155b037
165,487,715,087,941,630
Deleted_User
01/24/2022 12:16:28
when ur showing proof of work
1
0
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help-10
86f76e6169d74990a81ee349c155b037
165,487,715,087,941,630
Deleted_User
01/24/2022 12:16:31
is there like a way to say it
1
0
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help-10
86f76e6169d74990a81ee349c155b037
649,984,702,010,359,800
leonard
01/24/2022 12:16:32
secx is equal to 1/cosx
0
1
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help-10
86f76e6169d74990a81ee349c155b037
649,984,702,010,359,800
leonard
01/24/2022 12:16:39
cosx is an even function
0
1
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help-10
86f76e6169d74990a81ee349c155b037
649,984,702,010,359,800
leonard
01/24/2022 12:16:48
hence secx is also an even function
0
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help-10
86f76e6169d74990a81ee349c155b037
649,984,702,010,359,800
leonard
01/24/2022 12:17:05
there are probably more rigorous ways of proving it
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help-10
86f76e6169d74990a81ee349c155b037
165,487,715,087,941,630
Deleted_User
01/24/2022 12:17:31
hmm ok
1
0
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help-10
86f76e6169d74990a81ee349c155b037
165,487,715,087,941,630
Deleted_User
01/24/2022 12:18:36
.close
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:22:17
my bad for closing and reopning kinda the same question, but I : arcsec(sec(-2)) = 2 does not fit the parameters
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:22:18
https://cdn.discordapp.c…1442/unknown.png
unknown.png
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:22:55
because you do: let a = arcsec(sec(-2)) sec(a) = sec(-2) a = 2; but 2 does not fit the ranges
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:23:13
what should i do to make it fit in the ranges
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0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:28:27
you could extend the definition of arcsec
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:28:49
into the imaginary plane
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:28:54
where it has no ranges
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:30:35
@leonard wdym
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:30:49
nvm that
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:31:03
anyways
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:31:10
wdym it doesnt not fit the ranges
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:32:25
because ya know 2 is not between o and 1/2pi and also not between pi and 3pi/2 @leonard
1
0
649,984,702,010,359,800
leonard
5010
leonard
false
263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:32:37
well neither is -2
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:32:43
yea so thats my problem
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:32:48
well
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:32:55
math is weird
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leonard
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263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:33:00
cant i like 2pi + or 1pi+
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:33:03
try to find out why those ranges
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:33:08
or maybe pi - a
1
0
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263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:33:22
i know in cos functions you can 2pi - a, and u have the same cosine
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:33:26
can i do something similar here
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:33:37
sort of
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:34:04
arcsec(-x) = pi - arcsecx
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:35:20
so would that work
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:35:27
pi-2
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:35:45
so it respects the boundaries
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:35:49
ykno those ranges only apply for triangles right
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:36:06
hmm, pi-2 fits into the first range
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:36:21
just like how cosx seem to have limitless range
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:36:27
so does arcsecx
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:36:41
and basically all of the trigonometric functions
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:36:57
we just give them ranges when dealing with a geometric problem
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:37:03
involving triangles
0
1
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263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:37:15
okay but my teacher wants us to respect the ranges 0 -> 1/2pi and pi -> 3pi/2
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:37:21
oh
0
1
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null
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null
null
263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:37:28
https://cdn.discordapp.c…5896/unknown.png
unknown.png
1
0
null
null
null
null
null
263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:37:30
tell him thats hes sleeping on the job
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:37:33
no im jk
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:37:42
this dude is lowkey cracked tho fr
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:37:53
anyways
0
1
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263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:38:07
do you know that the pi here is in radians
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:38:12
yes
1
0
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263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:38:14
yeah
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:38:23
pi = 180 degrees
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:38:25
correct
0
1
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null
263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:38:30
yes
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:38:39
exactly this range only applies for triangles
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:38:48
secx = 1/cosx
0
1
null
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263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:38:54
whats the range for cosx
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:39:07
ok i get it now, man this shit is hard af then, how do i make arcsec(sec(-2)) respect the range
1
0
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:39:27
t^t
0
1
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null
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:39:33
the range is irrelevant
0
1
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263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:39:56
https://cdn.discordapp.c…7578/unknown.png
unknown.png
1
0
null
null
null
null
null
263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:40:21
istg
0
1
null
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null
null
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263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
649,984,702,010,359,800
leonard
01/24/2022 12:40:33
im dying with you here
0
1
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help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:40:44
alright bro its over for me
1
0
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null
263
help-10
d1421cf7f4d54f98a34d3ac465f9f946
165,487,715,087,941,630
Deleted_User
01/24/2022 12:40:47
.close
1
0
null
null
null
null
null
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
649,984,702,010,359,800
leonard
01/24/2022 12:40:48
https://cdn.discordapp.c…772/IMG_0379.png
IMG_0379.png
1
0
null
null
null
null
null
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
649,984,702,010,359,800
leonard
01/24/2022 12:40:53
there are no ranges
1
0
null
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null
null
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 12:48:02
https://cdn.discordapp.c…1190/unknown.png
unknown.png
0
1
null
null
null
null
null
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 12:48:18
How would I do question (ii) and (iii)?
0
1
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
586,955,478,529,998,800
rept1d
01/24/2022 13:14:46
ok, tell us how you solved the first one
0
1
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null
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
586,955,478,529,998,800
rept1d
01/24/2022 13:15:19
and i'll explain how you can do the same with 2 and 3
0
1
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:23:19
well -5 divided by 2 is -(5/2) so I multiplied 8 by it and got a as -20
0
1
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:34:29
I think I got it
0
1
null
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:34:39
I turned the vectors into
0
1
388,405,595,012,595,700
Boonja
0487
Boonja
false
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:35:00
8/(b+3) and (1-5b)/(4b-6)
0
1
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:35:05
Cross multiplied
0
1
586,955,478,529,998,800
rept1d
9600
rept1d
false
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:35:07
and factorised
0
1
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null
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:35:23
to get b = 1 and b = -(51/5)
0
1
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
321,445,119,171,756,000
Shuri2060
01/24/2022 13:40:44
?????????
0
1
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
321,445,119,171,756,000
Shuri2060
01/24/2022 13:40:49
vectors aren't fractions, what?
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1
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
321,445,119,171,756,000
Shuri2060
01/24/2022 13:40:59
Just use the definition of parallel for vectors:
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
321,445,119,171,756,000
Shuri2060
01/24/2022 13:41:03
They are multiples of each other
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:41:43
you turn them into fractions to find the parallel vectors
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:41:47
it worked perfectly so
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1
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
321,445,119,171,756,000
Shuri2060
01/24/2022 13:42:03
If I was presented with working like that, I would think you'd misunderstood how vectors work
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1
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
321,445,119,171,756,000
Shuri2060
01/24/2022 13:42:14
There is no need to 'cheat' by turning them into fractions
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
321,445,119,171,756,000
Shuri2060
01/24/2022 13:42:23
Same math, but looks improper.
0
1
321,445,119,171,756,000
Shuri2060
9525
a μ-er
false
264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:42:44
That’s what I was taught to do
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1
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:42:57
If you had the vector 4i + 2j
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:43:04
it can be shown as 2/4
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
321,445,119,171,756,000
Shuri2060
01/24/2022 13:49:02
That feels terrible, but if thats how your teacher wants it.
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:50:23
Nick does want it like that, and he’d kill me if it wasn’t
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:50:49
How would you do it then?
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264
help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
586,955,478,529,998,800
rept1d
01/24/2022 13:54:08
the problem is you can't use the same technique to solve the 3rd one
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
586,955,478,529,998,800
rept1d
01/24/2022 13:55:19
this is what you want to do instead
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help-10
6a1a6d16fbcd4dc3886fa50d93953bf4
388,405,595,012,595,700
Boonja
01/24/2022 13:55:47
I did
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