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सिद्ध कीजिए की: (1+ tan ^(2) ( 45^(@)...

सिद्ध कीजिए की:
` (1+ tan ^(2) ( 45^(@) -A))/( 1-tan ^(2) ( 45^(@) - A)) =cosec 2A `

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(1 + tan ^ (2) (45 ^ (@) - A)) / (1-tan ^ (2) (45 ^ (@) - A)) = csc2A

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

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

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

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

(1 + tan ^ (2) (45-A)) / (1-tan ^ (2) (45-A)) = cos ec2A

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