Posted by **Anonymous** on Thursday, March 1, 2012 at 7:10pm.

Which expression is equivalent to cos(4x) + cos(2x)?

## Answer This Question

## Related Questions

- trig - The expression 4 sin x cos x is equivalent to which of the following? (...
- TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
- Calculus (help Steve plz) - 1) if w = <-8, 15>, find ||w||? 2) which ...
- pre-cal - Simplify the given expression........? (2sin2x)(cos6x) sin 2x and cos ...
- Trigonometry - Write equivalent equations in the form of inverse functions for a...
- pre-calculus - which expression is equivalent to (sinx+1)(sinx-1)? A.) COS^2X B...
- Math - Solving Trig Equations - What am I doing wrong? Equation: sin2x = 2cos2x ...
- Trig - Which expression equivalent to: cos(theta + pi/2). A)cos theta B)-cos ...
- trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...
- trig - choose the expression that is equivalent to the given expression. 2 cos^2...

More Related Questions