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" 47) "tan(45^(@)+A)tan(45^(@)-A)=...

" 47) "tan(45^(@)+A)tan(45^(@)-A)=

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tan(45^(@)+A)tan(45^(@)-A)=1

tan(45^(@)+ theta )*tan(45^(@)-theta)=

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

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

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

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

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