Wednesday

April 16, 2014

April 16, 2014

Posted by **Katie** on Thursday, April 23, 2009 at 6:31pm.

Solve: sin(3x)-sin(x)=cos(2x)

so far i've gooten to:

sin(x)(2sin(x)cos(x)-1)=cos^2(x)-sin^2(x)

Where would I go from here?

**Related Questions**

Math - the original problem was: Solve: sin(3x)-sin(x)=cos(2x) so far i've ...

tigonometry - expres the following as sums and differences of sines or cosines ...

algebra - Can someone please help me do this problem? That would be great! ...

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

Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...

Pre-calc/Calc - Which expression is equivalent to sin(3x) + sin x? A. 2cos(2x)...

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

Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...

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

trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...