CBSE BOARD X, asked by Munawwar3260, 11 months ago

4 tan^2A-4sec^2A is equal to

Answers

Answered by ayush3520

4

4 tan²2A-4sec²A

4(tan²2A-sec²2A)

4(-1)

as tan²theta+1=sec²theta

therefore,

4(-1)=-4

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