# Solve cos2xsinx=1

CutiePieYum

## Homework Statement

Simplify AND Solve for X
cos2xsinx=1

## Homework Equations

The triples, doubles

## The Attempt at a Solution

cos2xsinx=1
(cos^2x-sin^2x)(sinx)=1
(-1x)(sinx)=1
-sinx=1
sinx= -1
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:-/

Help.. :)

Homework Helper

The maximum absolute value of cos(2x) and sin(x) is 1. So the only way you can solve that is if cos(2x)=1 AND sin(x)=1 or cos(2x)=(-1) AND sin(x)=(-1). Is either of those possible? If so which one?

CutiePieYum

I have no idea may i have another clue

CutiePieYum

anyone?