How would you find x when 0 equals 2sinxcosx-cosx?

Answer 1

2sinxcosx-cosx=0

Factored : cosx(2sinx-1)=0

2 solutions:

cosx=0 or sinx=.5

For cosx=0, x=90 or 270 degrees

For sinx=.5, x=30 degrees

x = {30, 90, 270}