hey guys having trouble simplying this expression. Any help? thank u
$\displaystyle
2sin3xcos3xcos5x-(cos^23x-sin^23x)sin5x
$
Just to add more:
$\displaystyle \cos{2x} = \cos^2{x} - \sin^2{x}$
$\displaystyle \cos{4x} = \cos^2{2x} - \sin^2{2x}$
$\displaystyle \ldots$
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$\displaystyle \sin{2x} = 2\sin{x}\cos{x}$
$\displaystyle \sin{4x} = 2\sin{2x}\cos{2x}$
$\displaystyle \ldots$
Do you see the pattern here?