Question 1012148
The product is csc^2 (x)-1
That is (1/sin^2(x)) -1
putting everything over sin^2 (x)
(1-sin^2 (x))/sin^2 (x)
But 1-sin^2 (x)=cos^2 (x)
Therefore, the identity is cos^2 (x)/sin^2 (x)
That is cot ^2 (x)