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

(1-tan^(2)(45^(@)-1))/(t+tan^(2)(45^(@)-10))=sin21

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

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

Choose the correct option and justify your choice: (1-tan^(2)45^(@))/(1+tan^(2)45^(@))=…

Prove the following : (1-tan^2(45^@-A))/(1+tan^2(45^@-A)) = sin2A

The value of (1-tan^(2)45^(@))/(1+tan^(2)45^(@)) is

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

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