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(sin^(3)x)/(1 + cosx) + (cos^(3)x)/(1 - ...

`(sin^(3)x)/(1 + cosx) + (cos^(3)x)/(1 - sinx) =`

A

`sqrt(2) cos [ pi/4-x]`

B

`sqrt(2) cos [ pi/4 + x]`

C

`sqrt(2) sin [ pi/4 - x]`

D

None of these

Text Solution

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The correct Answer is:
A
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