question_answer

If \[\sin \alpha =\sin \beta \] and\[\cos \alpha =\cos \beta \], then which one of the following option satisfies the given equation?

A) \[\alpha =\beta \]           

B) \[\alpha =-\beta \]

C) \[\alpha =-2\beta \]        

D) \[\alpha +\beta =\pi \]

E) None of these