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(1-tan^(2)(45^(@)-A))/(1+tan^(2)(45^(@)-...

`(1-tan^(2)(45^(@)-A))/(1+tan^(2)(45^(@)-A))` is equal to

A

sin 2 A

B

cos 2 A

C

tan 2 A

D

cot 2 A

Text Solution

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The correct Answer is:
A
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