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sin A*sin(60-A)*sin(60^(@)+A)=1/4sin3A...

sin A*sin(60-A)*sin(60^(@)+A)=1/4sin3A

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Prove that : "sin"Asin(60^0-A)sin(60^0+A)=1/4sin3A

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

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

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

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

If sin A sin (60^(@)-A)sin(60^(@)+A)=ksin3A , then what is k equal to ?

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