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Derivative of tan^(3)theta with respect ...

Derivative of `tan^(3)theta` with respect to `sec^(3)theta` at `theta=(pi)/(3)` is

A

` (3)/(2)`

B

` (sqrt(3))/( 2)`

C

` (1)/(2)`

D

` (-sqrt3)/(2) `

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The correct Answer is:
B
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