If , with , prove that…

MATHEMATICS · Subjective · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

16. If

\cos y=x \cos (a+y)

, with

\cos a \neq \pm 1

, prove that

\frac{d y}{d x}=\frac{\cos ^{2}(a+y)}{\sin a}

.

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