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January 25, 2015

January 25, 2015

Posted by **Tyler** on Thursday, April 15, 2010 at 5:12am.

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

- Pre Calculus -
**drwls**, Thursday, April 15, 2010 at 5:24amUse the tan (x + y) formula.

tan(x+y) = (tanx + tany)/(1 - tanx tany)

with y = pi/4, tany = 1

Your right hand side should have parentheses

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