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int(0)^(pi/2) cos 2x dx...

`int_(0)^(pi/2) cos 2x dx`

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To solve the integral \( \int_{0}^{\frac{\pi}{2}} \cos(2x) \, dx \), we will follow these steps: ### Step 1: Set up the integral Let \[ I = \int_{0}^{\frac{\pi}{2}} \cos(2x) \, dx \] ...
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