Tuesday

September 30, 2014

September 30, 2014

Posted by **Lynette** on Sunday, December 5, 2010 at 2:17pm.

cos(5x)cos(-4x)

2.Write the expression as a product.

cos(4x)-cos(12x)

**Answer this Question**

**Related Questions**

Precalculus - 1.Write the expression as a sum or difference. cos(5x)cos(-4x) 2....

Math - 1. use the suitable product-to-sum formula to rewrite the following ...

Math - Can someone please check my answers! 2. Find value of cos(255degrees)cos(...

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

trig--power reducing formulas - Having trouble with this problem: Rewrite the ...

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

precalculus - write each expression as the sine, cosine or tangent of a double ...

Precalculus - Solve Cos^2(x)+cos(x)=cos(2x). Give exact answers within the ...

Trigonometry - Write equivalent equations in the form of inverse functions for a...

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