Question

Sin 600 cos 390+ cos480 sin 150=-1

Answer 1

LHS=sin600cos390 + cos 480sin150 
       =sin(6x90+60).cos(4x90+30) + cos(5x90+30)sin(90+60) 
       =(-sin60).cos30 +-sin30.cos60 
       = -√3/2 x √3/2 +(-1/2 x 1/2) 
       = -3/4-1/4 
       =-1=RHS
Hence, proved.
And a small thing thing don't write sin, cos etc. trigonometric ratios starting with capital letters write all in small

Answer 2

Here is your answer.

HOPE IT HELPS YOU.