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Integrate the functions cos 2x cos 4x co...

Integrate the functions `cos 2x cos 4x cos 6x`

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To solve the integral of the function \( \cos(2x) \cos(4x) \cos(6x) \), we can follow these steps: ### Step 1: Set up the integral Let \( I = \int \cos(2x) \cos(4x) \cos(6x) \, dx \). ### Step 2: Rearranging the terms We can rearrange the terms in the integral: \[ I = \int \cos(6x) \cos(4x) \cos(2x) \, dx \] ...
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