TrigonometryChallengeInverse Trigonometric Functions ShareInverse Trigonometric Functions · Challenge problemFind the sum of the squares of all real solutions of arctan(x−1)+arctanx+arctan(x+1)=arctan3x\arctan(x-1)+\arctan x+\arctan(x+1)=\arctan3xarctan(x−1)+arctanx+arctan(x+1)=arctan3x.Check Show answer Walk through it step by step Practice more like this Review this concept