Question

prove that
(1+tan^2α)(1+cot^α)=1/sin^2α-sin^4α​

Answer 1

Answer:

(1+tan²2a)(1+cot²a)=1/sin²2a-sin⁴a

=》(sec²2a)(cosec²a)=1/sin²2a-sin⁴a

Answer 2

Answer:

Please refer to the attached image for answer

Thanks