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[" 5.सिद्र Do that "],[sin A*sin(60^(@)+...

[" 5.सिद्र Do that "],[sin A*sin(60^(@)+A)*sin(120^(@)+A)=(1)/(4)sin3A" ."]

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

4sinA.sin(60^(@)+A)sin(60^(@)-A)=sin3A

4sinA.sin(60^(@)+A)sin(60^(@)-A)=sin3A

Prove that: sinA. Sin(60^(2)+A).sin(120^(@)+A)=1/4sin3A

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

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

Show that 4sinAsin(60^(@)+A).sin(60^(@)-A)=sin3A .

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

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