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If x=acostheta,y=bsintheta," then"(d^(3)...

If `x=acostheta,y=bsintheta," then"(d^(3)y)/(dx^(3))` is equal to

A

`-(3b)/(a^(3))"cosec"^(4)thetacot^(4)theta`

B

`(3b)/(a^(3))"cosec"^(4)thetacottheta`

C

`-(3b)/(a^(3))"cosec"^(4)thetacottheta`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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OBJECTIVE RD SHARMA-DIFFERENTIATION-Exercise
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