Question

find the value of (1-sin^A)sec^A​

Answer 1

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

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

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

=sec^2A - tan^2A

we know that, 1 + tan^2A= sec^2A

=sec^2A-tan^2A = 1

So , answer is equal to 1

Answer 2

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