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

` ( 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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