Question

Find all solutions to the equation in the interval [0, 2π).
cos x = sin 2x

Answer 1

1. subtract sin2x from both sides.
2. Replace sin2x with 2sinxcosx
3. Factor out cosx
4. Set each factor equal to 0 and solve.

Answer 2

Thank you! I got it! (:

Answer 3

Good girl!! Yw