If θ1 and θ2 be respectively the smallest and the largest values of – InterviewSolution

1.	If θ1 and θ2 be respectively the smallest and the largest values of θ in (0,2π)−{π} which satisfy the equation, 2cot2θ−5sinθ+4=0, then θ2∫θ1cos23θ dθ is equal to :
Answer» If $θ_{1}$ and $θ_{2}$ be respectively the smallest and the largest values of $θ$ in $(0, 2 π) - {π}$ which satisfy the equation, $2 {cot}^{2} θ - \frac{5}{sin θ} + 4 = 0$ , then $θ_{2} \int θ_{1} {cos}^{2} 3 θ d θ$ is equal to :

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