In a triangle \( A B C \), if \( A-B=120^{\circ} \) and \( R=8 r \), then the value of \( \cos \.... VIDEO
In a triangle \( A B C \), if \( A-B=120^{\circ} \) and \( R=8 r \), then the value of \( \cos \mathrm{C} \) ishttps://bit.ly/YTAI_PWAP https://www.pw.live
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