" 5.Prove that "sin x sin(60^(@)+x)sin(60^(@)-x)=(1)/(4)sin3x

Prove that: sin A sin(60^(@)-A)sin(60^(@)+A)=(1)/(4)sin3A

If sin x sin(60^(@)+x)sin(60^(@)-x)=(1)/(8) then x=

If sin x sin(60^(@)-x)sin(60^(@)+x)=(1)/(4) ,then x=

Prove that: sinA.sin(60^(@)+A).sin(60^(@)-A)=1/4sin3A

Prove that: sinA.sin(60^(@)+A).sin(60^(@)-A)=1/4sinA

Prove that 4sinAsin(60^@-A)sin(60^@+A)-sin3A=0

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

Prove that: sin A sin(60-A)sin(60+A)=(1)/(4)sin3A

Show that 4 sin A sin (60^(@)+A). Sin (60^(@)-A) =sin 3A

Prove that sin A sin(60° - A) sin(60° + A) = 1/4 sin3A