how does one integrate $\int \sin(2x)\cos(4x)dx$? im looking for tips and hints on the matter ...
2026-04-03 02:11:12.1775182272
how does one integrate $\int \sin(2x)\cos(4x)dx$
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$$\sin \alpha \cos \beta = \frac{1}{2}(\sin(\alpha+\beta) + \sin(\alpha-\beta)),$$ with the choice $\alpha = 2x$, $\beta = 4x$.