Question

Precalc solve the solution set

Answer 1

i belive there is no solution

Explanation:

Answer 2

210° , 270°

Explanation:

6+6sinθ = 4cos²θ = 4 (1-sin²θ) = 4 - 4 sin²θ

4 sin²θ + 6 sinθ + 2 = 2(2 sin²θ + 3 sinθ + 1) = 0

2* (sinθ + 1) (2sinθ + 1) = 0

sinθ = -1 or sinθ = -1/2

θ = 270° or θ = 210°