Thursday

July 31, 2014

July 31, 2014

Posted by **moi** on Monday, March 8, 2010 at 10:32pm.

sin^4 x-cos^4 x

- Pre Calculus -
**Damon**, Monday, March 8, 2010 at 10:55pm(sin^2x -cos^2x)(sin^2x+cos^2x)

but sin^2x+cos^2x = 1

**Related Questions**

Math - Calculus - The identity below is significant because it relates 3 ...

Pre-Calculus - I don't understand,please be clear! Prove that each equation is ...

Pre-Calculus - Prove that each equation is an identity. I tried to do the ...

Pre-Cal - 1) Verify the identity cos^2 B - sin^2 B = 2 cos^2 B -1 I know that ...

Trigonometry - Prove the identity sin(x+y+z)+sin(x+y-z)+sin(x-y+z)+ sin(x-y-z...

Pre Calculus - Verify the identity: cos x + sin x tan x = sec x.

pre-cal - Simplify the given expression........? (2sin2x)(cos6x) sin 2x and cos ...

trig - it says to verify the following identity, working only on one side: cotx+...

Math - verify the following identity used in calculus: cos(x+h)-cos(x)/h=cos(x)[...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...