Optimal. Leaf size=123 \[ \frac {315}{128} a^4 \sqrt {b} \tanh ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right )+\frac {315}{128} a^3 b x \sqrt {a+b x^2}+\frac {105}{64} a^2 b x \left (a+b x^2\right )^{3/2}-\frac {\left (a+b x^2\right )^{9/2}}{x}+\frac {9}{8} b x \left (a+b x^2\right )^{7/2}+\frac {21}{16} a b x \left (a+b x^2\right )^{5/2} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.04, antiderivative size = 123, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 4, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.267, Rules used = {277, 195, 217, 206} \[ \frac {105}{64} a^2 b x \left (a+b x^2\right )^{3/2}+\frac {315}{128} a^3 b x \sqrt {a+b x^2}+\frac {315}{128} a^4 \sqrt {b} \tanh ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right )-\frac {\left (a+b x^2\right )^{9/2}}{x}+\frac {9}{8} b x \left (a+b x^2\right )^{7/2}+\frac {21}{16} a b x \left (a+b x^2\right )^{5/2} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 195
Rule 206
Rule 217
Rule 277
Rubi steps
\begin {align*} \int \frac {\left (a+b x^2\right )^{9/2}}{x^2} \, dx &=-\frac {\left (a+b x^2\right )^{9/2}}{x}+(9 b) \int \left (a+b x^2\right )^{7/2} \, dx\\ &=\frac {9}{8} b x \left (a+b x^2\right )^{7/2}-\frac {\left (a+b x^2\right )^{9/2}}{x}+\frac {1}{8} (63 a b) \int \left (a+b x^2\right )^{5/2} \, dx\\ &=\frac {21}{16} a b x \left (a+b x^2\right )^{5/2}+\frac {9}{8} b x \left (a+b x^2\right )^{7/2}-\frac {\left (a+b x^2\right )^{9/2}}{x}+\frac {1}{16} \left (105 a^2 b\right ) \int \left (a+b x^2\right )^{3/2} \, dx\\ &=\frac {105}{64} a^2 b x \left (a+b x^2\right )^{3/2}+\frac {21}{16} a b x \left (a+b x^2\right )^{5/2}+\frac {9}{8} b x \left (a+b x^2\right )^{7/2}-\frac {\left (a+b x^2\right )^{9/2}}{x}+\frac {1}{64} \left (315 a^3 b\right ) \int \sqrt {a+b x^2} \, dx\\ &=\frac {315}{128} a^3 b x \sqrt {a+b x^2}+\frac {105}{64} a^2 b x \left (a+b x^2\right )^{3/2}+\frac {21}{16} a b x \left (a+b x^2\right )^{5/2}+\frac {9}{8} b x \left (a+b x^2\right )^{7/2}-\frac {\left (a+b x^2\right )^{9/2}}{x}+\frac {1}{128} \left (315 a^4 b\right ) \int \frac {1}{\sqrt {a+b x^2}} \, dx\\ &=\frac {315}{128} a^3 b x \sqrt {a+b x^2}+\frac {105}{64} a^2 b x \left (a+b x^2\right )^{3/2}+\frac {21}{16} a b x \left (a+b x^2\right )^{5/2}+\frac {9}{8} b x \left (a+b x^2\right )^{7/2}-\frac {\left (a+b x^2\right )^{9/2}}{x}+\frac {1}{128} \left (315 a^4 b\right ) \operatorname {Subst}\left (\int \frac {1}{1-b x^2} \, dx,x,\frac {x}{\sqrt {a+b x^2}}\right )\\ &=\frac {315}{128} a^3 b x \sqrt {a+b x^2}+\frac {105}{64} a^2 b x \left (a+b x^2\right )^{3/2}+\frac {21}{16} a b x \left (a+b x^2\right )^{5/2}+\frac {9}{8} b x \left (a+b x^2\right )^{7/2}-\frac {\left (a+b x^2\right )^{9/2}}{x}+\frac {315}{128} a^4 \sqrt {b} \tanh ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right )\\ \end {align*}
________________________________________________________________________________________
Mathematica [C] time = 0.01, size = 52, normalized size = 0.42 \[ -\frac {a^4 \sqrt {a+b x^2} \, _2F_1\left (-\frac {9}{2},-\frac {1}{2};\frac {1}{2};-\frac {b x^2}{a}\right )}{x \sqrt {\frac {b x^2}{a}+1}} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
fricas [A] time = 0.92, size = 184, normalized size = 1.50 \[ \left [\frac {315 \, a^{4} \sqrt {b} x \log \left (-2 \, b x^{2} - 2 \, \sqrt {b x^{2} + a} \sqrt {b} x - a\right ) + 2 \, {\left (16 \, b^{4} x^{8} + 88 \, a b^{3} x^{6} + 210 \, a^{2} b^{2} x^{4} + 325 \, a^{3} b x^{2} - 128 \, a^{4}\right )} \sqrt {b x^{2} + a}}{256 \, x}, -\frac {315 \, a^{4} \sqrt {-b} x \arctan \left (\frac {\sqrt {-b} x}{\sqrt {b x^{2} + a}}\right ) - {\left (16 \, b^{4} x^{8} + 88 \, a b^{3} x^{6} + 210 \, a^{2} b^{2} x^{4} + 325 \, a^{3} b x^{2} - 128 \, a^{4}\right )} \sqrt {b x^{2} + a}}{128 \, x}\right ] \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
giac [A] time = 1.22, size = 115, normalized size = 0.93 \[ -\frac {315}{256} \, a^{4} \sqrt {b} \log \left ({\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{2}\right ) + \frac {2 \, a^{5} \sqrt {b}}{{\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{2} - a} + \frac {1}{128} \, {\left (325 \, a^{3} b + 2 \, {\left (105 \, a^{2} b^{2} + 4 \, {\left (2 \, b^{4} x^{2} + 11 \, a b^{3}\right )} x^{2}\right )} x^{2}\right )} \sqrt {b x^{2} + a} x \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maple [A] time = 0.00, size = 117, normalized size = 0.95 \[ \frac {315 a^{4} \sqrt {b}\, \ln \left (\sqrt {b}\, x +\sqrt {b \,x^{2}+a}\right )}{128}+\frac {315 \sqrt {b \,x^{2}+a}\, a^{3} b x}{128}+\frac {105 \left (b \,x^{2}+a \right )^{\frac {3}{2}} a^{2} b x}{64}+\frac {21 \left (b \,x^{2}+a \right )^{\frac {5}{2}} a b x}{16}+\frac {9 \left (b \,x^{2}+a \right )^{\frac {7}{2}} b x}{8}+\frac {\left (b \,x^{2}+a \right )^{\frac {9}{2}} b x}{a}-\frac {\left (b \,x^{2}+a \right )^{\frac {11}{2}}}{a x} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maxima [A] time = 1.46, size = 91, normalized size = 0.74 \[ \frac {9}{8} \, {\left (b x^{2} + a\right )}^{\frac {7}{2}} b x + \frac {21}{16} \, {\left (b x^{2} + a\right )}^{\frac {5}{2}} a b x + \frac {105}{64} \, {\left (b x^{2} + a\right )}^{\frac {3}{2}} a^{2} b x + \frac {315}{128} \, \sqrt {b x^{2} + a} a^{3} b x + \frac {315}{128} \, a^{4} \sqrt {b} \operatorname {arsinh}\left (\frac {b x}{\sqrt {a b}}\right ) - \frac {{\left (b x^{2} + a\right )}^{\frac {9}{2}}}{x} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
mupad [B] time = 6.03, size = 40, normalized size = 0.33 \[ -\frac {{\left (b\,x^2+a\right )}^{9/2}\,{{}}_2{\mathrm {F}}_1\left (-\frac {9}{2},-\frac {1}{2};\ \frac {1}{2};\ -\frac {b\,x^2}{a}\right )}{x\,{\left (\frac {b\,x^2}{a}+1\right )}^{9/2}} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
sympy [A] time = 7.47, size = 173, normalized size = 1.41 \[ - \frac {a^{\frac {9}{2}}}{x \sqrt {1 + \frac {b x^{2}}{a}}} + \frac {197 a^{\frac {7}{2}} b x}{128 \sqrt {1 + \frac {b x^{2}}{a}}} + \frac {535 a^{\frac {5}{2}} b^{2} x^{3}}{128 \sqrt {1 + \frac {b x^{2}}{a}}} + \frac {149 a^{\frac {3}{2}} b^{3} x^{5}}{64 \sqrt {1 + \frac {b x^{2}}{a}}} + \frac {13 \sqrt {a} b^{4} x^{7}}{16 \sqrt {1 + \frac {b x^{2}}{a}}} + \frac {315 a^{4} \sqrt {b} \operatorname {asinh}{\left (\frac {\sqrt {b} x}{\sqrt {a}} \right )}}{128} + \frac {b^{5} x^{9}}{8 \sqrt {a} \sqrt {1 + \frac {b x^{2}}{a}}} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________