Question

TRigonometry

Answer 1

\[\huge \sum_{i=1}^{n}\cos \theta_i = n , \sum_{i=1}^{n}\sin \theta_i = ?\]

Answer 2

\[\sum_{i=1}^{n} \sin \theta = 0\]

Answer 3

the only way the first sum is true is if each angle is 0
cos(0) = 1

Answer 4

Wow!!