Prove that ` (1+(1)/(tan^(2)A))(1+(1)/(cot^(2)A))=(1)/((sin^(2)A- sin^(4)A)). `
Channel: Doubtnut
Date: 2020-01-03

Prove that ` (1+(1)/(tan^(2)A))(1+(1)/(cot^(2)A))=(1)/((sin^(2)A- sin^(4)A)). `