The absolute value of \( \sum_{r=1}^{8}\left(\sin \frac{2 r \pi}{9}+i \cos \frac{2 r \pi}{9}\rig... VIDEO
The absolute value of \( \sum_{r=1}^{8}\left(\sin \frac{2 r \pi}{9}+i \cos \frac{2 r \pi}{9}\right) \), ishttps://bit.ly/YTAI_PWAP https://www.pw.live
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