SOLUTION: If TanA=1/4 and TanB=3/5, find the value of the angle (A+B) without using a calculator

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Question 401211: If TanA=1/4 and TanB=3/5, find the value of the angle (A+B) without using a calculator
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Using the tangent addition formula,

, so the angle A+B could be either pi%2F4 or 5%28pi%29%2F4, depending on whether the angle is in the first or third quadrant.