Find ∫5x2+1dx\int \frac{5}{x^2+1} dx∫x2+15dx.
5arctan(x)+C5\arctan(x) + C5arctan(x)+C
arctan(5x)+C\arctan(5x) + Carctan(5x)+C
5ln(x2+1)+C5\ln(x^2+1) + C5ln(x2+1)+C
5x+C\frac{5}{x} + Cx5+C