If cos3xsin2x=a1sinx+a2sin2x+⋯+ansinnx ∀x∈R, where an≠0, then – InterviewSolution

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1.	If cos3xsin2x=a1sinx+a2sin2x+⋯+ansinnx ∀x∈R, where an≠0, then which of the following is/are correct ?
Answer» If ${cos}^{3} x sin 2 x = a_{1} sin x + a_{2} sin 2 x + \dots + a_{n} sin n x$ $\forall x \in R$ , where $a_{n} \neq 0$ , then which of the following is/are correct ?

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