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साबित करें कि sin6^(@) sin 42^(@) sin 66...

साबित करें कि `sin6^(@) sin 42^(@) sin 66^(@) sin 78^(@) = (1)/(16)`

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sin 20^(@) sin 40^(@) sin 60^(@) sin 80^(@) =(3)/(16)

Find sin6^(@)sin42^(@)sin66^(@)sin78^(@) .

Prove that sin 6^(@) sin 42^(@) sin 66^(@) sin 78^(@) = (1)/(16) .

sin6^(@)sin42^(@)sin66^(@)sin78^(@)=

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

Prove that: sin6^(@)sin42^(@)sin66^(@)sin78^(@)=1/16

Prove that: sin6^(@)sin42^(@)sin66^(@)sin78^(@)=1/16