Question

The number of solutions of the pair of equations $2 \sin^2 \theta - \cos 2\theta = 0$ and $2 \cos^2 \theta - 3 \sin \theta = 0$ in the interval $[0, 2\pi]$ is:

• A. zero
• B. two
• C. one
• D. four

Answer 1

Answer: (B)

two

Answer 2

The correct option is (B):two