If x=a cos^3theta,y=asin^3theta, then 1+...

If `x=a cos^3theta,y=asin^3theta`, then `1+((dy)/(dx))^2` is ___

A

`sec ^2 theta`

B

`tan theta`

C

1

D

`tan^2 theta`

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The correct Answer is:

A

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