Prove that cos24° + cos55° +cos125° + cos204°+ cos300°=$\frac{1}{2}$

Prove that, cos24° + cos55° +cos125° + cos204°+ cos300°=$\frac{1}{2}$ Solution: L.H.S: cos24° + cos55° +cos125° + cos204°+ cos300° = cos24° …

Read more