Prove that

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

L.H.S.=
 =( using sin ( 2np-q) = -sin q  cos ( 2np+q) = cos q )
 =
  =
=
=
=R.H.S.
Hence proved.

Answered by  | 4th Jun, 2014, 03:23: PM