14.154 Problem number 1068

\[ \int \frac {1}{(d+e x)^2 \sqrt {c d^2+2 c d e x+c e^2 x^2}} \, dx \]

Optimal antiderivative \[ -\frac {1}{2 e \left (e x +d \right ) \sqrt {c \,e^{2} x^{2}+2 c d e x +c \,d^{2}}} \]

command

integrate(1/(e*x+d)^2/(c*e^2*x^2+2*c*d*e*x+c*d^2)^(1/2),x, algorithm="giac")

Giac 1.9.0-11 via sagemath 9.6 output

\[ -\frac {e^{\left (-1\right )}}{2 \, {\left (x e + d\right )}^{2} \sqrt {c} \mathrm {sgn}\left (x e + d\right )} \]

Giac 1.7.0 via sagemath 9.3 output

\[ \mathit {sage}_{0} x \]________________________________________________________________________________________