Question

(cos²A-1) (cot²A+1)= -1​

Answer 1

Answer:

The proof is given below.

Step-by-step explanation:

(cos²A - 1) (cot²A + 1) = -1

(1 - sin²A - 1) (cosec²A -1 +1) = -1

(-sin²A) (cosec²A) = -1

($\frac{-1}{cosec^{2}A }$) (cosec²A)  = -1

-1 = -1

Hence proved.

Answer 2

Step-by-step explanation:

pls mark as brainllist