10-2 - 102.notebook November19,2010 102Formulasfortan( )...

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10­2.notebook 1 November 19, 2010 Apr 3­9:05 AM 10­2 Formulas for tan ( α ± β) tan ( α + β) = tan α + tan β 1- tan α tan β tan ( α - β) = tan α - tan β 1+ tan α tan β Apr 3­9:09 AM Ex. 1 Suppose tan α = 1/3 and tan β = 1/2. Find tan ( α + β)
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10-2 - 102.notebook November19,2010 102Formulasfortan( )...

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