Posted by **Rick** on Sunday, June 26, 2011 at 8:17pm.

I need help proving the following identity:

4(sin^6(x)+cos^6(x)) = 4-3sin^2(2x)

I am completely lost, if anybody can please give me a step-by-step guide to figuring this out, I would be forever grateful!!

## Answer this Question

## Related Questions

- Trigonometry - I have some trigonometric equations to do, but I'm pretty lost, ...
- Math - Trigonometry - I need help proving this identity 2sin^2x - 1 = sin^2x - ...
- trig - Verify the identity sin 3x cos 3x = 1/2 sin 6x can you show step by step ...
- trigonometry HELP pleasE! - these must be written as a single trig expression, ...
- Math (trigonometry) - Trigonometry identities are so hard... I need some help ...
- TRIGONOMETRY - Can someone please give me a step by step answer on how to find ...
- Math(Please help) - 1) Verify the identity cos^4x - sin^4x = cos2x I know that ...
- Trig - sum and difference formulas - Write the expression as a single ...
- tigonometry - expres the following as sums and differences of sines or cosines ...
- Math - Calculus - The identity below is significant because it relates 3 ...

More Related Questions