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" 3."4sin A sin(60^(@)+A)sin(60^(@)-A)=s...

" 3."4sin A sin(60^(@)+A)sin(60^(@)-A)=sin3A

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

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

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

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

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

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

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

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

Prove the following : 4 sin A sin (60^@ + A) sin (60^@ - A) = sin 3A .

If A=30^(@) , show that : sin3A=4sinAsin(60^(@)-A)sin(60^(@)+A)