Posted by **Hannah** on Friday, March 5, 2010 at 2:54pm.

Perform the multiplication and use the fundamental identities to simplify.

(cotx + cscx)(cotx-cscx)

I know that you have to foil first so

cot^2x - csc^2x and then use the pythagorean identity 1+cot^2u = csc^2u but I do not know how to simplify.

## Answer This Question

## Related Questions

- Pre-Cal - Perform the multiplication and use the fundamental identities to ...
- trig - verify (csc^4-1)/cot^2x=2+cot^2x So this is what I have so far on the ...
- Trigonometric Identities - Which of the following are trigonometric identities, ...
- Trig verifying identities - I am having trouble with this problem. sec^2(pi/2-x...
- calculus - express in sinx 1 1 ---------- + -------- cscx + cotx cscx - cotx and...
- trig - express this in sinx (1/ cscx + cotx )+ (1/cscx- cotx) i got 2sinx is ...
- drwls - My previous question: Verify that (secx/sinx)*(cotx/cscx)=cscx is an ...
- Calculus - integral of cscx^(2/3)(cot^3)x i know that cot^2x is csc^2(x)-1, but ...
- Math - Verify the identity . (cscX-cotX)^2=1-cosX/1+cosX _______ sorry i cant ...
- math - use the quotient and reciprocal identities to simplify the given ...

More Related Questions