Here's my problem, can someone show me the steps on doing this:
$$\cos 5x − \cos 3x = −8 \sin^2 x(2 \cos^3 x − \cos x)$$
Here is a link to my problem, I don't know what to put into the blanks though
Here's my problem, can someone show me the steps on doing this:
$$\cos 5x − \cos 3x = −8 \sin^2 x(2 \cos^3 x − \cos x)$$
Here is a link to my problem, I don't know what to put into the blanks though