C-09-Q141mediumsingle_mcq2cos2θ+3sinθ−3=02\cos^2\theta+3\sin\theta-3=02cos2θ+3sinθ−3=0 এর সমাধান (সূক্ষ্মকোণ)—a30∘30^\circ30∘b45∘45^\circ45∘c