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" 38.Prove that "(cos66^(@)+sin84^(@))=s...

" 38.Prove that "(cos66^(@)+sin84^(@))=sqrt(3)+sqrt(15)

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Prove that 4(cos66^(@)+sin84^(@)) = sqrt(3) + sqrt(15) .

cos 66^(@) + sin 84^(@) =

prove that 4sin(24^(@)+cos6^(@))=sqrt(3)+sqrt(15)

Prove that, cos18^(@)-sin18^(@)=sqrt(2)sin27^(@)

Prove that cos 18^(@)-sin 18^(@)=sqrt(2)sin 27^(@)

Prove that cos 18^(@)-sin 18^(@)=sqrt(2)sin 27^(@)

Prove that cos 18^(@)-sin 18^(@)=sqrt(2)sin 27^(@)

4(sin24^(0)+cos6^(@))=sqrt(3)+sqrt(15)

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cos66^(@)+sin84^(@)=(sqrt(15)+sqrt(3))/(k) .Then k=