You can enter the following expression into this website for a step-by-step evaluation of the differentiation of your expression.
arccos[x]/x + (1/2) * ln[(1-sqrt[1-x^2]) / (1 + sqrt[1-x^2])]
You can enter the following expression into this website for a step-by-step evaluation of the differentiation of your expression.
arccos[x]/x + (1/2) * ln[(1-sqrt[1-x^2]) / (1 + sqrt[1-x^2])]