Integrand size = 26, antiderivative size = 79 \[ \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^6} \, dx=-\frac {a \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )}-\frac {b \sqrt {a^2+2 a b x^2+b^2 x^4}}{3 x^3 \left (a+b x^2\right )} \]
[Out]
Time = 0.02 (sec) , antiderivative size = 79, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {1126, 14} \[ \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^6} \, dx=-\frac {a \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )}-\frac {b \sqrt {a^2+2 a b x^2+b^2 x^4}}{3 x^3 \left (a+b x^2\right )} \]
[In]
[Out]
Rule 14
Rule 1126
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {a^2+2 a b x^2+b^2 x^4} \int \frac {a b+b^2 x^2}{x^6} \, dx}{a b+b^2 x^2} \\ & = \frac {\sqrt {a^2+2 a b x^2+b^2 x^4} \int \left (\frac {a b}{x^6}+\frac {b^2}{x^4}\right ) \, dx}{a b+b^2 x^2} \\ & = -\frac {a \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )}-\frac {b \sqrt {a^2+2 a b x^2+b^2 x^4}}{3 x^3 \left (a+b x^2\right )} \\ \end{align*}
Time = 1.01 (sec) , antiderivative size = 39, normalized size of antiderivative = 0.49 \[ \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^6} \, dx=-\frac {\sqrt {\left (a+b x^2\right )^2} \left (3 a+5 b x^2\right )}{15 x^5 \left (a+b x^2\right )} \]
[In]
[Out]
Time = 1.93 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.44
method | result | size |
risch | \(\frac {\left (-\frac {b \,x^{2}}{3}-\frac {a}{5}\right ) \sqrt {\left (b \,x^{2}+a \right )^{2}}}{x^{5} \left (b \,x^{2}+a \right )}\) | \(35\) |
gosper | \(-\frac {\left (5 b \,x^{2}+3 a \right ) \sqrt {\left (b \,x^{2}+a \right )^{2}}}{15 \left (b \,x^{2}+a \right ) x^{5}}\) | \(36\) |
default | \(-\frac {\left (5 b \,x^{2}+3 a \right ) \sqrt {\left (b \,x^{2}+a \right )^{2}}}{15 \left (b \,x^{2}+a \right ) x^{5}}\) | \(36\) |
[In]
[Out]
none
Time = 0.25 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.19 \[ \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^6} \, dx=-\frac {5 \, b x^{2} + 3 \, a}{15 \, x^{5}} \]
[In]
[Out]
\[ \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^6} \, dx=\int \frac {\sqrt {\left (a + b x^{2}\right )^{2}}}{x^{6}}\, dx \]
[In]
[Out]
none
Time = 0.19 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.19 \[ \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^6} \, dx=-\frac {5 \, b x^{2} + 3 \, a}{15 \, x^{5}} \]
[In]
[Out]
none
Time = 0.28 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.39 \[ \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^6} \, dx=-\frac {5 \, b x^{2} \mathrm {sgn}\left (b x^{2} + a\right ) + 3 \, a \mathrm {sgn}\left (b x^{2} + a\right )}{15 \, x^{5}} \]
[In]
[Out]
Time = 13.20 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.44 \[ \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^6} \, dx=-\frac {\left (5\,b\,x^2+3\,a\right )\,\sqrt {{\left (b\,x^2+a\right )}^2}}{15\,x^5\,\left (b\,x^2+a\right )} \]
[In]
[Out]