Math, asked by heeeeema, 1 year ago

prove sec^4 A - sec^2 A = tan^4 A + tan^2 A

Answers

Answered by dibyendu2

2

sec^4A_Sec^2A=Sec^2A(sec^2A-1)
=Sec^2A Tan^2A
=(Tan^2A+1)Tan^2A
=Tan^4A+Tan^2A

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