Question : int _ ^ frac1(1+x^2) Evaluate the integral arctan(x)+C,C∈R Evaluate ∫(1+x2)1dxRemove the parentheses ∫1+x21dxUse the property of integral ∫a2+x21dx=a1arctan(ax) arctan(x)Solution arctan(x)+C,C∈R Show Solution