Solve arctan (-sqrt (3))

We are given with the expression arctan (-sqrt (3)) and asked to evaluate it. In this case, we can use a calculator or the rule of common triangles to answer this question. the value of arctan (-sqrt (3)) is - 60. Since negative tan is found in 2nd and 4th quadrant, the angles are 180-60 or 120 degrees and 360-60 or 300 degrees.