Given:
[tex]\begin{gathered} f(x)=2sin^2\theta \\ g(x)=-1+4\sin \theta-2\sin ^2\theta \end{gathered}[/tex][tex]\begin{gathered} \text{When }\theta=\frac{\pi}{6}, \\ f(x)=0.5 \\ g(x)=0.5 \end{gathered}[/tex][tex]\begin{gathered} \text{When x=}\frac{5\pi}{6}, \\ f(x)=0.5 \\ g(x)=0.5 \end{gathered}[/tex][tex]\theta=\frac{\pi}{6},\frac{5\pi}{6}[/tex]
2nd option is the final answer.
