Optimal. Leaf size=88 \[ \frac{\frac{a^2}{c^2}-\frac{b^2}{d^2}}{\sqrt{c+d x^2}}-\frac{a^2 \tanh ^{-1}\left (\frac{\sqrt{c+d x^2}}{\sqrt{c}}\right )}{c^{5/2}}+\frac{(b c-a d)^2}{3 c d^2 \left (c+d x^2\right )^{3/2}} \]
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Rubi [A] time = 0.0920913, antiderivative size = 88, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 4, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.167, Rules used = {446, 87, 63, 208} \[ \frac{\frac{a^2}{c^2}-\frac{b^2}{d^2}}{\sqrt{c+d x^2}}-\frac{a^2 \tanh ^{-1}\left (\frac{\sqrt{c+d x^2}}{\sqrt{c}}\right )}{c^{5/2}}+\frac{(b c-a d)^2}{3 c d^2 \left (c+d x^2\right )^{3/2}} \]
Antiderivative was successfully verified.
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Rule 446
Rule 87
Rule 63
Rule 208
Rubi steps
\begin{align*} \int \frac{\left (a+b x^2\right )^2}{x \left (c+d x^2\right )^{5/2}} \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{(a+b x)^2}{x (c+d x)^{5/2}} \, dx,x,x^2\right )\\ &=\frac{1}{2} \operatorname{Subst}\left (\int \left (-\frac{(b c-a d)^2}{c d (c+d x)^{5/2}}+\frac{b^2 c^2-a^2 d^2}{c^2 d (c+d x)^{3/2}}+\frac{a^2}{c^2 x \sqrt{c+d x}}\right ) \, dx,x,x^2\right )\\ &=\frac{(b c-a d)^2}{3 c d^2 \left (c+d x^2\right )^{3/2}}+\frac{\frac{a^2}{c^2}-\frac{b^2}{d^2}}{\sqrt{c+d x^2}}+\frac{a^2 \operatorname{Subst}\left (\int \frac{1}{x \sqrt{c+d x}} \, dx,x,x^2\right )}{2 c^2}\\ &=\frac{(b c-a d)^2}{3 c d^2 \left (c+d x^2\right )^{3/2}}+\frac{\frac{a^2}{c^2}-\frac{b^2}{d^2}}{\sqrt{c+d x^2}}+\frac{a^2 \operatorname{Subst}\left (\int \frac{1}{-\frac{c}{d}+\frac{x^2}{d}} \, dx,x,\sqrt{c+d x^2}\right )}{c^2 d}\\ &=\frac{(b c-a d)^2}{3 c d^2 \left (c+d x^2\right )^{3/2}}+\frac{\frac{a^2}{c^2}-\frac{b^2}{d^2}}{\sqrt{c+d x^2}}-\frac{a^2 \tanh ^{-1}\left (\frac{\sqrt{c+d x^2}}{\sqrt{c}}\right )}{c^{5/2}}\\ \end{align*}
Mathematica [C] time = 0.0446822, size = 67, normalized size = 0.76 \[ \frac{a^2 d^2 \, _2F_1\left (-\frac{3}{2},1;-\frac{1}{2};\frac{d x^2}{c}+1\right )-b c \left (2 a d+2 b c+3 b d x^2\right )}{3 c d^2 \left (c+d x^2\right )^{3/2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.011, size = 120, normalized size = 1.4 \begin{align*} -{\frac{{b}^{2}{x}^{2}}{d} \left ( d{x}^{2}+c \right ) ^{-{\frac{3}{2}}}}-{\frac{2\,{b}^{2}c}{3\,{d}^{2}} \left ( d{x}^{2}+c \right ) ^{-{\frac{3}{2}}}}-{\frac{2\,ab}{3\,d} \left ( d{x}^{2}+c \right ) ^{-{\frac{3}{2}}}}+{\frac{{a}^{2}}{3\,c} \left ( d{x}^{2}+c \right ) ^{-{\frac{3}{2}}}}+{\frac{{a}^{2}}{{c}^{2}}{\frac{1}{\sqrt{d{x}^{2}+c}}}}-{{a}^{2}\ln \left ({\frac{1}{x} \left ( 2\,c+2\,\sqrt{c}\sqrt{d{x}^{2}+c} \right ) } \right ){c}^{-{\frac{5}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.46352, size = 651, normalized size = 7.4 \begin{align*} \left [\frac{3 \,{\left (a^{2} d^{4} x^{4} + 2 \, a^{2} c d^{3} x^{2} + a^{2} c^{2} d^{2}\right )} \sqrt{c} \log \left (-\frac{d x^{2} - 2 \, \sqrt{d x^{2} + c} \sqrt{c} + 2 \, c}{x^{2}}\right ) - 2 \,{\left (2 \, b^{2} c^{4} + 2 \, a b c^{3} d - 4 \, a^{2} c^{2} d^{2} + 3 \,{\left (b^{2} c^{3} d - a^{2} c d^{3}\right )} x^{2}\right )} \sqrt{d x^{2} + c}}{6 \,{\left (c^{3} d^{4} x^{4} + 2 \, c^{4} d^{3} x^{2} + c^{5} d^{2}\right )}}, \frac{3 \,{\left (a^{2} d^{4} x^{4} + 2 \, a^{2} c d^{3} x^{2} + a^{2} c^{2} d^{2}\right )} \sqrt{-c} \arctan \left (\frac{\sqrt{-c}}{\sqrt{d x^{2} + c}}\right ) -{\left (2 \, b^{2} c^{4} + 2 \, a b c^{3} d - 4 \, a^{2} c^{2} d^{2} + 3 \,{\left (b^{2} c^{3} d - a^{2} c d^{3}\right )} x^{2}\right )} \sqrt{d x^{2} + c}}{3 \,{\left (c^{3} d^{4} x^{4} + 2 \, c^{4} d^{3} x^{2} + c^{5} d^{2}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 23.7789, size = 87, normalized size = 0.99 \begin{align*} \frac{a^{2} \operatorname{atan}{\left (\frac{\sqrt{c + d x^{2}}}{\sqrt{- c}} \right )}}{c^{2} \sqrt{- c}} + \frac{\left (a d - b c\right )^{2}}{3 c d^{2} \left (c + d x^{2}\right )^{\frac{3}{2}}} + \frac{\left (a d - b c\right ) \left (a d + b c\right )}{c^{2} d^{2} \sqrt{c + d x^{2}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.1615, size = 138, normalized size = 1.57 \begin{align*} \frac{a^{2} \arctan \left (\frac{\sqrt{d x^{2} + c}}{\sqrt{-c}}\right )}{\sqrt{-c} c^{2}} - \frac{3 \,{\left (d x^{2} + c\right )} b^{2} c^{2} - b^{2} c^{3} + 2 \, a b c^{2} d - 3 \,{\left (d x^{2} + c\right )} a^{2} d^{2} - a^{2} c d^{2}}{3 \,{\left (d x^{2} + c\right )}^{\frac{3}{2}} c^{2} d^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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