theta sigma-Sin omega sin(60^(@)-theta)sin(60^(@)+theta)=(1)/(4)sin30

Prove that sin theta sin(60^(@)-theta) sin(60^(@)+theta)=1/4 sin3theta .

Prove that sin theta sin(60^(@)-theta) sin(60^(@)+theta)=1/4 sin3theta .

Prove that sinthetasin(60^(@)+theta)sin(60^(@)-theta)=1/4sin3theta Hence deduce that sin20^(@)sin40^(@)sin60^(@)sin80^(@)=3//16 (OCT-97,INST.93)

sin (60^(@) + theta) - sin ( 60^(@) - theta ) = sin theta.

Evaluate sin(30^(@)+theta)-cos(60^(@)-theta) .

Evaluate sin(30^(@)+theta)-cos(60^(@)-theta) .

sin theta sin (60^(@) - theta) sin (60^(@)+ theta) in [-k,k] rArr k=

sin(30^o +theta) +cos(60^o +theta) :

Prove that: |sin theta sin(60-theta)sin(60+theta)|<=(1)/(4) for all values of theta