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सिद्ध कीजिए कि tan 5^(@)tan 25^(@)tan ...

सिद्ध कीजिए कि `tan 5^(@)tan 25^(@)tan 30^(@)tan 65^(@)tan 85^(@)=(1)/(sqrt3)`

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Evaluate: tan5^(@)tan25^(@)tan30^(@)tan65^(@)tan85^(@)

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

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Prove that: tan20^(@)tan30^(@)tan40^(@)tan80^(@)=1

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Find the value : tan5^@tan25^@tan30^@tan65^@tan85^@