A) \[\frac{\sigma }{2}\,\sin 2\theta \]
B) \[\frac{\sigma }{2}\,\cos 2\theta \]
C) \[\frac{\sigma }{2}\,{{\cos }^{2}}\theta \]
D) \[\frac{\sigma }{2}\,{{\sin }^{2}}\theta \]
Correct Answer: A
You need to login to perform this action.
You will be redirected in
3 sec