Math, asked by bhaveshchenani, 3 months ago

prove that(cosec^2A-1)(secA+1)(secA-1) =1

Answers

Answered by vivekydv1109

0

Step-by-step explanation:

(cosec^2A-1) (secA+1)(secA-1)=1

LHS=(cosec^2A-1) (secA+1) (secA-1)

=(1/sin^2A-1) (sec^2-1)

=(1-sin^2A/sin^2A) (1-cos^2A/cos^2A)

=1

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