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

`( 1-tan ^(2) 45^(@) )/( 1+tan ^(2) 45^(@)) = `

A

`tan 90 ^(@) `

B

` 1`

C

`sin 45^(@) `

D

`0`

Text Solution

Verified by Experts

The correct Answer is:
d
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