Prove the identity tan 2x - tan x = tan x sec 2x

Thank you for your time and help

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- October 6th 2009, 07:35 AMBeckyDWoodTrigonometric Identities
Prove the identity tan 2x - tan x = tan x sec 2x

Thank you for your time and help - October 6th 2009, 10:09 AMAmer
- October 6th 2009, 11:02 AMKrizalid