Determine the indefinite integral of f(x)=3x+1f(x) = \frac{3}{x+1}f(x)=x+13.
3ln∣x+1∣+C3\ln|x+1| + C3ln∣x+1∣+C
3(x+1)2+C\frac{3}{(x+1)^2} + C(x+1)23+C
ln∣x+1∣+C\ln|x+1| + Cln∣x+1∣+C
3xln∣x+1∣+C3x\ln|x+1| + C3xln∣x+1∣+C