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sin18^(@)=...

sin18^(@)=

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sin 18^(@) =…………

The value of sin 18^(@) is

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

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

Prove that : cos 36 ^(@) - sin 18^(@) = (1)/(2).

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

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

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

If cos 18^(@) - sin 18^(@) = k sin 27^(@) , then k =