tan(x+pai/4)=1+tanx/1-tanx

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tan(x+pai/4)=1+tanx/1-tanxtan(x+pai/4)=1+tanx/1-tanxtan(x+pai/4)=1+tanx/1-tanxtan(x+pai/4)=(tanx+tan

tan(x+pai/4)=1+tanx/1-tanx
tan(x+pai/4)=1+tanx/1-tanx

tan(x+pai/4)=1+tanx/1-tanx
tan(x+pai/4)
=(tanx+tan(pai/4))/(1-tanxtan(pai/4))
=(tanx+1)/(1-tanx)