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" 26."sin18^(@)=?...

" 26."sin18^(@)=?

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sin 18^(@) =…………

cos18 ^ (@) - sin18 ^ (@) =

cos72^(@)-sin18^(@)= ________

Prove that sin 12^(@) sin18^(@)sin42^(@) sin48^(@) sin 72^(@) sin78^(@)=(cos18^(@))/(32) .

Prove that sin 12^(@) sin18^(@)sin42^(@) sin48^(@) sin 72^(@) sin78^(@)=(cos18^(@))/(32) .

Prove that sin 12^(@) sin18^(@)sin42^(@) sin48^(@) sin 72^(@) sin78^(@)=(cos18^(@))/(32) .

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

(1) (sin18 ^ (@)) / (cos72 ^ (@)) (ii) (tan26 ^ (@)) / (cot64 ^ (@))

If cos18^(@)-sin18^(@)=sqrt(n)sin27^(@) , then n=

If cos18^(@)-sin18^(@)=sqrt(x)sin27^(@) , then x=