- #1

GuN

- 9

- 0

## Homework Statement

2 sin(2x) = 2 cos(x)

## Homework Equations

## The Attempt at a Solution

4sinxcosx-2cosx=0

2(2sinxcosx-cosx)=0

2cosx(sinx-1)=0

2cosx=0 sinx=1

And then I did the math and got pi/2 and 3pi/2 , but that's apparently wrong.