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सिद्ध कीजिए की: tan 20^(@) tan 40^(@) t...

सिद्ध कीजिए की: ` tan 20^(@) tan 40^(@) tan 80^(@) =sqrt(3) `

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

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

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

Prove that tan20^(@) tan40^(@) tan80^(@) = sqrt3

tan20^(@)-tan80^(@)+sqrt(3)=

tan 70^(@) - tan 20^(@) -2 tan 40^(@)=

tan 70^(@) - tan 20^(@) -2 tan 40^(@)=

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

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

tan20^(@)tan30^(@)tan40^(@)tan80^(@)=1