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" 27.Prove that "tan20^(@)*tan40^(@)*tan...

" 27.Prove that "tan20^(@)*tan40^(@)*tan80^(@)=tan60^(@)

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Prove that tan 20^(@) tan 40^(@) tan 80^(@)=tan 60^(@)

Prove that: tan20^(@)tan40^(@)tan60^(@)tan80^(@)=3

Prove that :tan20^(@)tan40^(@)tan60^(@)tan80^(@)=3

tan20^(@)tan40^(@)tan60^(@)tan80^(@)=?

tan 20^(@) tan 40^(@) tan 80^(@) = tan 60^(@)

tan20^(@)tan40^(@)tan60^(@)tan80^(@)

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