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Integrate the functions(cos2x-cos2alpha)...

Integrate the functions`(cos2x-cos2alpha)/(cosx-cosalpha)`

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To solve the integral \(\int \frac{\cos 2x - \cos 2\alpha}{\cos x - \cos \alpha} \, dx\), we will follow these steps: ### Step 1: Rewrite \(\cos 2x\) using the double angle identity We know that: \[ \cos 2x = 2\cos^2 x - 1 \] Thus, we can rewrite the integral as: ...
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