/sci/ - Science & Math » Thread #12407195

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Anonymous Tue 01 Dec 13:43:29 2020 No.12407195 View Reply Original Report

Quoted By: >>12407197

sin 2x = 2 cos x
How do you solve something like this?

Anonymous

Anonymous Tue 01 Dec 2020 13:46:59 No.12407197 Report

Quoted By:

>>12407195
hope the kitty ok

Anonymous

Anonymous Tue 01 Dec 2020 13:50:04 No.12407204 Report

Quoted By: >>12407214

Would it work if i turn the cos into sin?
So if i have 2. sin( pi/2 - x ), would that give me, pi - 2x?

Anonymous

Anonymous Tue 01 Dec 2020 13:54:14 No.12407211 Report

Quoted By:

Anonymous

Anonymous Tue 01 Dec 2020 13:55:28 No.12407214 Report

Quoted By:

>>12407204
For reference: i'm trying to solve the last three.

Anonymous

Anonymous Tue 01 Dec 2020 13:59:42 No.12407224 Report

Quoted By: >>12407232

Use the double angle formula sin2x = 2sinxcosx and cancel the 2cosx so your equation becomes sinx=1

Anonymous

Anonymous Tue 01 Dec 2020 14:01:05 No.12407232 Report

Quoted By:

>>12407224
Thanks a lot

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