For a positive integer \( n \), let \( I_{n}=\int_{-\pi}^{\pi}\left(\frac{\pi}{2}-|x|\right) \co... VIDEO
For a positive integer \( n \), let \( I_{n}=\int_{-\pi}^{\pi}\left(\frac{\pi}{2}-|x|\right) \cos n x d x \)https://bit.ly/YTAI_PWAP https://www.pw.live
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