Tuesday
September 23, 2014

Homework Help: trig

Posted by Anonymous on Saturday, March 12, 2011 at 9:00am.

prove that (sin^4x-cos^4x)/(sinx-cosx) = sinx+cosx

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Trig........ - I need to prove that the following is true. Thanks (cosx / 1-sinx...
Precalculus/Trig - I can't seem to prove these trig identities and would really ...
Trigonometry. - ( tanx/1-cotx )+ (cotx/1-tanx)= (1+secxcscx) Good one! ...
Pre-Calc - Trigonometric Identities Prove: (tanx + secx -1)/(tanx - secx + 1)= ...
Trig - prove the identity (sinX)^6 +(cosX)^6= 1 - 3(sinX)^2 (cosX)^2 sinX^6= ...
Trigonometry - Prove the following trigonometric identities. please give a ...
Math - Pre- Clac - Prove that each of these equations is an identity. A) (1 + ...
Trigonometry Check - Simplify #3: [cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [...
trig - I need to prove equality. a) (sina + cosa)^2 -1 / ctga - sinacosa = 2tg^...
Trig....... - I need to prove that the following is true. Thanks (2tanx /1-tan^x...

Search
Members