Question

Prove that - cosec^4A - cot^4A = 3 cot^2A cosec^2A +1​

Answer 1

Answer:

The question is wrong

Here's the correct question with the answer:

cosec^6A - cot^6A

(Cosec^2A)^3 - (cot^2A)^3

(Cosec^2A - cot^2A)(cosec^4A + cot^4A + cosec^2A cot^2A)

Cosec^4A + cot^2A - 2cosec^2A cot^2A + 3cosec^2A cot^2A

(Cosec^2A - cot^2A)^2 + 3cosec^2A cot^2A

1 + 3 cosec^2A cot^2A