How do you simplify the expression cot^2x+1?

2 Answers
Sep 15, 2016

csc^(2)(x)

Explanation:

We have: cot^(2)(x) + 1

This expression can be simplfiified by applying one of the Pythagorean identities: 1 + cot^(2)(x) = csc^(2)(x)

= csc^(2)(x)

Jul 19, 2018

csc^2x

Explanation:

Let's say you didn't know the identity: 1+cot^2x= csc^2x
Another approach could be:

cot^2x+1=

cos^2x/sin^2x+sin^2x/sin^2x=

(cos^2x+sin^2x)/sin^2x=

1/sin^2x=

csc^2x