Question

(cos^2 A) / (cot^2 A - cos^2 A)

Answer 1

Answer:

tan^2 A

Step-by-step explanation:

Divide the denominator and numerator by cos^A, can also put cot^2A = cos^2A / sin^2A.

So, it can be simplified as

1 / ( 1/sin^2A - 1)

= 1 / (cosec^2A - 1 )

= 1 / cot^2 A

= tan^2 A