Find ∫dxx2+2x+5\int \frac{dx}{x^2+2x+5}∫x2+2x+5dx.
12arctan(x+12)+C\frac{1}{2}\arctan(\frac{x+1}{2}) + C21arctan(2x+1)+C
arctan(x+12)+C\arctan(\frac{x+1}{2}) + Carctan(2x+1)+C
ln∣x2+2x+5∣+C\ln|x^2+2x+5| + Cln∣x2+2x+5∣+C
None