differentiation

Question: If $x = a\sin \theta $ and $y = b$$\cos \theta ,$ then $\frac{{{d^2}y}}{{d{x^2}}}$ is

1) $\frac{a}{{{b^2}}}{\sec ^2}\theta $

2) $\frac{{ - b}}{a}{\sec ^2}\theta $

3) $\frac{{ - b}}{{{a^2}}}{\sec ^3}\theta $

4) $\frac{{ - b}}{{{a^2}}}{\sec ^3}\theta $

Solution:

Explanation: Explanation

Implicit-function

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