Mathematics, 27.12.2020 19:10, pedrojulianhdz2005

Prove that :- (sin^2A- sec^2A+ cos^2A) ÷ (cos^2A+ sin^2A- cosec^2A) = tan^4A

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Prove that :- (sin^2A- sec^2A+ cos^2A) ÷ (cos^2A+ sin^2A- cosec^2A) = tan^4A...