(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

sin(4x) = 8cos^{3}(x)sin(x)-4sin(x)cos(x)

2. Relevant equations

All trigonometric identities

3. The attempt at a solution

I can simplify the right side using the double angle identity to:

sin(4x) = 4sin(2x)cos^{2}(x)-2sin(2x)

However, now I'm not sure what to do. Did I take a step in the wrong direction?

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# Verifying an Identity

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