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Trig

Retard Tue 19 Nov 02:53:57 2019 No.11159165 View Reply Original Report

Quoted By: >>11163303

OK guys here's my problem:
> took trig and college algebra at the same time
>thiswillbeez.exe
>I have my last trig test b4 final tmrw
>know about 50% of what I need to
What do?

Anonymous

Anonymous Tue 19 Nov 2019 02:56:10 No.11159174 Report

Quoted By: >>11159186

easy
$sin^2\theta +cos^2\theta =1$

Retard

Retard Tue 19 Nov 2019 02:59:05 No.11159186 Report

Quoted By: >>11161025 >>11161051

>>11159174
I've got most of the identities memorized desu. Vectors are ezpz too. I suck at solving trig equations.

Anonymous

Anonymous Tue 19 Nov 2019 03:16:12 No.11159226 Report

Quoted By:

You memorize that circle thing, the sin, cos and tan functions and everything? And their inverses?

Anonymous

Anonymous Tue 19 Nov 2019 19:47:55 No.11161025 Report

Quoted By: >>11161070 >>11161160 >>11161440 >>11161448 >>11161997

>>11159186
This. Something like sinx=9.3826
I still have no fucking clue how to this. No, arcsin does not yield the correct answer(s)

Anonymous

Anonymous Tue 19 Nov 2019 19:56:41 No.11161051 Report

Quoted By:

>>11159186
what do you mean by solve? what variable are you solving for that you're struggling on?

Anonymous

Anonymous Tue 19 Nov 2019 20:01:42 No.11161070 Report

Quoted By: >>11161138

>>11161025
>No, arcsin does not yield the correct answer(s)
wat

Anonymous

Anonymous Tue 19 Nov 2019 20:19:36 No.11161138 Report

Quoted By:

>>11161070
Dude I don't fucking know the online math system our class uses just tells me I'm wrong everytime and to go eat shit and die. If this thread is still up later I can post screenshots and one of you whizzes can tell me how these kinds of problems aren't as straightforward as they seem.

Anonymous

Anonymous Tue 19 Nov 2019 20:25:24 No.11161160 Report

Quoted By: >>11161181

>>11161025
Sin can't be greater than 1

Anonymous

Anonymous Tue 19 Nov 2019 20:34:05 No.11161181 Report

Quoted By:

>>11161160
lol, this guy doesn't use complex numbers

Anonymous

Anonymous Tue 19 Nov 2019 21:59:40 No.11161440 Report

Quoted By:

>>11161025
>he doesn't know how based Archimedes derived the numbers

Anonymous

Anonymous Tue 19 Nov 2019 22:01:53 No.11161448 Report

Quoted By:

>>11161025
reverse sin both sides but sin cant be greater than one

Anonymous

Anonymous Wed 20 Nov 2019 01:23:22 No.11161997 Report

Quoted By:

>>11161025
Yes it does.

For instance sin(?) = sqrt(2)/2 (approximately 0.707). To find ?, just take do arcsin(sqrt(2)/2) to get ?, which is 45 deg or pi/4 rad.

Anonymous

Anonymous Wed 20 Nov 2019 16:17:25 No.11163303 Report

Quoted By:

>>11159165
I'm taking trig and precalc at the same time as well OP. Got second highest score on last precalc test in room of 270 people, and also got second highest on trig (in a smaller room tho.) literally just study, do practice problems, and try to understand as much as you have time to.

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