Find all degree solutions in the interval 0° ≤ θ < 360°. If rounding is necessary, round to the nearest tenth of a degree. (Enter your answers as a comma-separated list.)? 3 sin^2 θ − 10 cos 2theta = 0
3 sin^2 θ − 10 cos 2theta = 0
1 Answer
Aug 9, 2018
Explanation:
We missed the solutions in quadrants 2 and 3 as arcsin is restricted to quadrants 1 and 4:
So:
graph{3(sinx)^2-10cos(2x) [-10, 10, -5, 5]}