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If sin 2theta=k, then the value of (tan^...

If `sin 2theta=k`, then the value of `(tan^(3)theta)/(1+tan^(2)theta)+(cot^(3)theta)/(1+cot^(2)theta)` is equal to

A

`(1-k^(2))/(k)`

B

`(2-k^(2))/(k)`

C

`k^(2)+1`

D

`2-k^(2)`

Text Solution

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The correct Answer is:
b
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