(1+tan^(2)theta)(1-sintheta)(1+sintheta)...

`(1+tan^(2)theta)(1-sintheta)(1+sintheta)=`………… .

A

`cos^(2)theta - sin^(2)theta`

B

`sin^(2)theta - cos^(2)theta`

C

`sin^(2)theta + cos^(2)theta`

D

0

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The correct Answer is:

C

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