To find the value of x when tan(x) = 1/3, you can use the arctan (inverse tangent) function. In many calculators, this is denoted as "tan^(-1)" or "atan." Here's how you can find x: x = atan(1/3) Using a calculator, compute the arctan of 1/3: x ≈ atan(1/3) ≈ 18.43 degrees So, the value of x is approximately 18.43 degrees when tan(x) = 1/3.