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sin18^(@)=?...

sin18^(@)=?

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3 cos72^(@)-4" sin"18^(@)=

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^(@)

sin 18^(@) =…………

The value of sin 18^(@) is

Evaluate : (sin 18^(@))/(cos 72^(@))

Evaluate : (sin 18^(@))/(cos72^(@))