If x = a cos^(3) theta, y = a sin ^(3) t...

If x = `a cos^(3) theta, y = a sin ^(3) theta then sqrt(1+((dy)/(dx))^(2))`=?

A

`sec theta`

B

`3 a sin theta cos theta`

C

`3 a tan theta`

D

`a sin theta cos theta`

Verified by Experts

The correct Answer is:

B

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