The smallest positive angle which satisfies the equation 2 sin2 x+3 – InterviewSolution

1.	The smallest positive angle which satisfies the equation 2 sin2 x+3 cos x+1=0 is(a) 5π6(b) 2π3(c) π3(d) π6
Answer» The smallest positive angle which satisfies the equation $2 \sin^{2} x + \sqrt{3} \cos x + 1 = 0$ is (a) $\frac{5 π}{6}$ (b) $\frac{2 π}{3}$ (c) $\frac{π}{3}$ (d) $\frac{π}{6}$

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