How to solve the arctan of an angle given in radians by hand - Quora
SOLVED: Ben and Shannon are sharing a calculator that doesn't have buttons for inverse trig functions. Ben wants to approximate the value of arctan(2) by using the Taylor series for arctan(x), which
Intro to arctangent (video) | Trigonometry | Khan Academy
Solved Handwork problem: (Hand calculations using | Chegg.com
Find the Angle with Arctan
How to use the inverse tangent without a calculator - YouTube