Use an identity to find the exact value of: tan(7pi/12)e
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Use an identity to find the exact value of: tan(7pi/12)e

[From: ] [author: ] [Date: 11-12-12] [Hit: ]
............
... tan ( 7π/12 )

= tan [ (3π/12) + (4π/12) ]

= tan ( π/4 + π/3 )

= ( tan π/4 + tan π/3 ) / ( 1 - tan π/4 tan π/3 )

= ( 1 + √3 ) / ( 1 - √3 ) ........................................… Ans.
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