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Prove that: sin6^(@)sin42^(@)sin66^(@)...

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

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Prove that: i) sin20^(@)sin40^(@)sin60^(@)sin80^(@)=3/16 ii) sin10^(@)sin50^(@)sin60^(@)sin70^(@)=sqrt(3)/16 iii) sin20^(@)sin40^(@)sin80^(@)=sqrt(3)/8

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Prove that: sin6^0sin42^0sin 66^0sin 78^0=1/(16)

Prove that sin6^0sin42^0sin66^0sin78^0=1/(16)

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Prove that: sin20^0sin40^0sin60^0sin80^0=3/(16)

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

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