- #1

stevensen

- 3

- 0

## Homework Statement

Prove:

cotAcotB=(cscB+cotA)/(tanAsecB+tanB)

## Homework Equations

cotx=1/tanx, etc.

I tried using pythagorean identities, like 1+cot

^{2}x=csc

^{2}x, and others, but I've been unable to solve the problem.

## The Attempt at a Solution

Please help me out. The examples in my textbook don't seem very useful here. I've tried everything I could think of.