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What is the simplified value of [(cos^(2...

What is the simplified value of `[(cos^(2) theta)/(1+sin theta)- (sin^(2) theta)/(1 + cos theta)]^(2)`?

A

`sintheta`

B

`1-sin2theta`

C

`1+sin2theta`

D

`1-sintheta`

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The correct Answer is:
D
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