Integrand size = 24, antiderivative size = 123 \[ \int \frac {x^2}{\left (a+b x^2\right )^2 \left (c+d x^2\right )^{3/2}} \, dx=-\frac {3 d x}{2 (b c-a d)^2 \sqrt {c+d x^2}}-\frac {x}{2 (b c-a d) \left (a+b x^2\right ) \sqrt {c+d x^2}}+\frac {(b c+2 a d) \arctan \left (\frac {\sqrt {b c-a d} x}{\sqrt {a} \sqrt {c+d x^2}}\right )}{2 \sqrt {a} (b c-a d)^{5/2}} \]
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Time = 0.06 (sec) , antiderivative size = 123, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.208, Rules used = {482, 541, 12, 385, 211} \[ \int \frac {x^2}{\left (a+b x^2\right )^2 \left (c+d x^2\right )^{3/2}} \, dx=\frac {(2 a d+b c) \arctan \left (\frac {x \sqrt {b c-a d}}{\sqrt {a} \sqrt {c+d x^2}}\right )}{2 \sqrt {a} (b c-a d)^{5/2}}-\frac {x}{2 \left (a+b x^2\right ) \sqrt {c+d x^2} (b c-a d)}-\frac {3 d x}{2 \sqrt {c+d x^2} (b c-a d)^2} \]
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Rule 12
Rule 211
Rule 385
Rule 482
Rule 541
Rubi steps \begin{align*} \text {integral}& = -\frac {x}{2 (b c-a d) \left (a+b x^2\right ) \sqrt {c+d x^2}}+\frac {\int \frac {c-2 d x^2}{\left (a+b x^2\right ) \left (c+d x^2\right )^{3/2}} \, dx}{2 (b c-a d)} \\ & = -\frac {3 d x}{2 (b c-a d)^2 \sqrt {c+d x^2}}-\frac {x}{2 (b c-a d) \left (a+b x^2\right ) \sqrt {c+d x^2}}+\frac {\int \frac {c (b c+2 a d)}{\left (a+b x^2\right ) \sqrt {c+d x^2}} \, dx}{2 c (b c-a d)^2} \\ & = -\frac {3 d x}{2 (b c-a d)^2 \sqrt {c+d x^2}}-\frac {x}{2 (b c-a d) \left (a+b x^2\right ) \sqrt {c+d x^2}}+\frac {(b c+2 a d) \int \frac {1}{\left (a+b x^2\right ) \sqrt {c+d x^2}} \, dx}{2 (b c-a d)^2} \\ & = -\frac {3 d x}{2 (b c-a d)^2 \sqrt {c+d x^2}}-\frac {x}{2 (b c-a d) \left (a+b x^2\right ) \sqrt {c+d x^2}}+\frac {(b c+2 a d) \text {Subst}\left (\int \frac {1}{a-(-b c+a d) x^2} \, dx,x,\frac {x}{\sqrt {c+d x^2}}\right )}{2 (b c-a d)^2} \\ & = -\frac {3 d x}{2 (b c-a d)^2 \sqrt {c+d x^2}}-\frac {x}{2 (b c-a d) \left (a+b x^2\right ) \sqrt {c+d x^2}}+\frac {(b c+2 a d) \tan ^{-1}\left (\frac {\sqrt {b c-a d} x}{\sqrt {a} \sqrt {c+d x^2}}\right )}{2 \sqrt {a} (b c-a d)^{5/2}} \\ \end{align*}
Leaf count is larger than twice the leaf count of optimal. \(1437\) vs. \(2(123)=246\).
Time = 9.77 (sec) , antiderivative size = 1437, normalized size of antiderivative = 11.68 \[ \int \frac {x^2}{\left (a+b x^2\right )^2 \left (c+d x^2\right )^{3/2}} \, dx=\frac {1}{2} \left (-\frac {2 d x \left (-16 c^{5/2}-20 c^{3/2} d x^2-5 \sqrt {c} d^2 x^4+16 c^2 \sqrt {c+d x^2}+12 c d x^2 \sqrt {c+d x^2}+d^2 x^4 \sqrt {c+d x^2}\right )}{(b c-a d)^2 \left (c+d x^2-\sqrt {c} \sqrt {c+d x^2}\right ) \left (8 c^2+8 c d x^2+d^2 x^4-8 c^{3/2} \sqrt {c+d x^2}-4 \sqrt {c} d x^2 \sqrt {c+d x^2}\right )}+\frac {b x \left (32 c^{7/2}+64 c^{5/2} d x^2+38 c^{3/2} d^2 x^4+6 \sqrt {c} d^3 x^6-32 c^3 \sqrt {c+d x^2}-48 c^2 d x^2 \sqrt {c+d x^2}-18 c d^2 x^4 \sqrt {c+d x^2}-d^3 x^6 \sqrt {c+d x^2}\right )}{(b c-a d)^2 \left (a+b x^2\right ) \left (2 c+d x^2-2 \sqrt {c} \sqrt {c+d x^2}\right ) \left (8 c^2+8 c d x^2+d^2 x^4-8 c^{3/2} \sqrt {c+d x^2}-4 \sqrt {c} d x^2 \sqrt {c+d x^2}\right )}+\frac {b^{3/2} c^{3/2} \arctan \left (\frac {\sqrt {2 b c-a d-2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}} x}{\sqrt {a} \left (\sqrt {c}-\sqrt {c+d x^2}\right )}\right )}{\sqrt {a} (b c-a d)^{5/2} \sqrt {2 b c-a d-2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}}}+\frac {2 \sqrt {a} \sqrt {b} \sqrt {c} d \arctan \left (\frac {\sqrt {2 b c-a d-2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}} x}{\sqrt {a} \left (\sqrt {c}-\sqrt {c+d x^2}\right )}\right )}{(b c-a d)^{5/2} \sqrt {2 b c-a d-2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}}}+\frac {b c \arctan \left (\frac {\sqrt {2 b c-a d-2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}} x}{\sqrt {a} \left (-\sqrt {c}+\sqrt {c+d x^2}\right )}\right )}{\sqrt {a} (b c-a d)^2 \sqrt {2 b c-a d-2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}}}+\frac {2 \sqrt {a} d \arctan \left (\frac {\sqrt {2 b c-a d-2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}} x}{\sqrt {a} \left (-\sqrt {c}+\sqrt {c+d x^2}\right )}\right )}{(b c-a d)^2 \sqrt {2 b c-a d-2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}}}+\frac {b^{3/2} c^{3/2} \arctan \left (\frac {\sqrt {2 b c-a d+2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}} x}{\sqrt {a} \left (-\sqrt {c}+\sqrt {c+d x^2}\right )}\right )}{\sqrt {a} (b c-a d)^{5/2} \sqrt {2 b c-a d+2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}}}+\frac {2 \sqrt {a} \sqrt {b} \sqrt {c} d \arctan \left (\frac {\sqrt {2 b c-a d+2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}} x}{\sqrt {a} \left (-\sqrt {c}+\sqrt {c+d x^2}\right )}\right )}{(b c-a d)^{5/2} \sqrt {2 b c-a d+2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}}}+\frac {b c \arctan \left (\frac {\sqrt {2 b c-a d+2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}} x}{\sqrt {a} \left (-\sqrt {c}+\sqrt {c+d x^2}\right )}\right )}{\sqrt {a} (b c-a d)^2 \sqrt {2 b c-a d+2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}}}+\frac {2 \sqrt {a} d \arctan \left (\frac {\sqrt {2 b c-a d+2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}} x}{\sqrt {a} \left (-\sqrt {c}+\sqrt {c+d x^2}\right )}\right )}{(b c-a d)^2 \sqrt {2 b c-a d+2 \sqrt {b} \sqrt {c} \sqrt {b c-a d}}}\right ) \]
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Time = 3.04 (sec) , antiderivative size = 97, normalized size of antiderivative = 0.79
method | result | size |
pseudoelliptic | \(\frac {-\frac {b \sqrt {d \,x^{2}+c}\, x}{2 \left (b \,x^{2}+a \right )}+\frac {\left (2 a d +b c \right ) \operatorname {arctanh}\left (\frac {\sqrt {d \,x^{2}+c}\, a}{x \sqrt {\left (a d -b c \right ) a}}\right )}{2 \sqrt {\left (a d -b c \right ) a}}-\frac {d x}{\sqrt {d \,x^{2}+c}}}{\left (a d -b c \right )^{2}}\) | \(97\) |
default | \(\text {Expression too large to display}\) | \(1922\) |
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Leaf count of result is larger than twice the leaf count of optimal. 352 vs. \(2 (103) = 206\).
Time = 0.48 (sec) , antiderivative size = 744, normalized size of antiderivative = 6.05 \[ \int \frac {x^2}{\left (a+b x^2\right )^2 \left (c+d x^2\right )^{3/2}} \, dx=\left [-\frac {{\left ({\left (b^{2} c d + 2 \, a b d^{2}\right )} x^{4} + a b c^{2} + 2 \, a^{2} c d + {\left (b^{2} c^{2} + 3 \, a b c d + 2 \, a^{2} d^{2}\right )} x^{2}\right )} \sqrt {-a b c + a^{2} d} \log \left (\frac {{\left (b^{2} c^{2} - 8 \, a b c d + 8 \, a^{2} d^{2}\right )} x^{4} + a^{2} c^{2} - 2 \, {\left (3 \, a b c^{2} - 4 \, a^{2} c d\right )} x^{2} - 4 \, {\left ({\left (b c - 2 \, a d\right )} x^{3} - a c x\right )} \sqrt {-a b c + a^{2} d} \sqrt {d x^{2} + c}}{b^{2} x^{4} + 2 \, a b x^{2} + a^{2}}\right ) + 4 \, {\left (3 \, {\left (a b^{2} c d - a^{2} b d^{2}\right )} x^{3} + {\left (a b^{2} c^{2} + a^{2} b c d - 2 \, a^{3} d^{2}\right )} x\right )} \sqrt {d x^{2} + c}}{8 \, {\left (a^{2} b^{3} c^{4} - 3 \, a^{3} b^{2} c^{3} d + 3 \, a^{4} b c^{2} d^{2} - a^{5} c d^{3} + {\left (a b^{4} c^{3} d - 3 \, a^{2} b^{3} c^{2} d^{2} + 3 \, a^{3} b^{2} c d^{3} - a^{4} b d^{4}\right )} x^{4} + {\left (a b^{4} c^{4} - 2 \, a^{2} b^{3} c^{3} d + 2 \, a^{4} b c d^{3} - a^{5} d^{4}\right )} x^{2}\right )}}, \frac {{\left ({\left (b^{2} c d + 2 \, a b d^{2}\right )} x^{4} + a b c^{2} + 2 \, a^{2} c d + {\left (b^{2} c^{2} + 3 \, a b c d + 2 \, a^{2} d^{2}\right )} x^{2}\right )} \sqrt {a b c - a^{2} d} \arctan \left (\frac {\sqrt {a b c - a^{2} d} {\left ({\left (b c - 2 \, a d\right )} x^{2} - a c\right )} \sqrt {d x^{2} + c}}{2 \, {\left ({\left (a b c d - a^{2} d^{2}\right )} x^{3} + {\left (a b c^{2} - a^{2} c d\right )} x\right )}}\right ) - 2 \, {\left (3 \, {\left (a b^{2} c d - a^{2} b d^{2}\right )} x^{3} + {\left (a b^{2} c^{2} + a^{2} b c d - 2 \, a^{3} d^{2}\right )} x\right )} \sqrt {d x^{2} + c}}{4 \, {\left (a^{2} b^{3} c^{4} - 3 \, a^{3} b^{2} c^{3} d + 3 \, a^{4} b c^{2} d^{2} - a^{5} c d^{3} + {\left (a b^{4} c^{3} d - 3 \, a^{2} b^{3} c^{2} d^{2} + 3 \, a^{3} b^{2} c d^{3} - a^{4} b d^{4}\right )} x^{4} + {\left (a b^{4} c^{4} - 2 \, a^{2} b^{3} c^{3} d + 2 \, a^{4} b c d^{3} - a^{5} d^{4}\right )} x^{2}\right )}}\right ] \]
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\[ \int \frac {x^2}{\left (a+b x^2\right )^2 \left (c+d x^2\right )^{3/2}} \, dx=\int \frac {x^{2}}{\left (a + b x^{2}\right )^{2} \left (c + d x^{2}\right )^{\frac {3}{2}}}\, dx \]
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\[ \int \frac {x^2}{\left (a+b x^2\right )^2 \left (c+d x^2\right )^{3/2}} \, dx=\int { \frac {x^{2}}{{\left (b x^{2} + a\right )}^{2} {\left (d x^{2} + c\right )}^{\frac {3}{2}}} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 299 vs. \(2 (103) = 206\).
Time = 0.88 (sec) , antiderivative size = 299, normalized size of antiderivative = 2.43 \[ \int \frac {x^2}{\left (a+b x^2\right )^2 \left (c+d x^2\right )^{3/2}} \, dx=-\frac {d x}{{\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \sqrt {d x^{2} + c}} - \frac {{\left (b c \sqrt {d} + 2 \, a d^{\frac {3}{2}}\right )} \arctan \left (\frac {{\left (\sqrt {d} x - \sqrt {d x^{2} + c}\right )}^{2} b - b c + 2 \, a d}{2 \, \sqrt {a b c d - a^{2} d^{2}}}\right )}{2 \, {\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \sqrt {a b c d - a^{2} d^{2}}} + \frac {{\left (\sqrt {d} x - \sqrt {d x^{2} + c}\right )}^{2} b c \sqrt {d} - 2 \, {\left (\sqrt {d} x - \sqrt {d x^{2} + c}\right )}^{2} a d^{\frac {3}{2}} - b c^{2} \sqrt {d}}{{\left ({\left (\sqrt {d} x - \sqrt {d x^{2} + c}\right )}^{4} b - 2 \, {\left (\sqrt {d} x - \sqrt {d x^{2} + c}\right )}^{2} b c + 4 \, {\left (\sqrt {d} x - \sqrt {d x^{2} + c}\right )}^{2} a d + b c^{2}\right )} {\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )}} \]
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Timed out. \[ \int \frac {x^2}{\left (a+b x^2\right )^2 \left (c+d x^2\right )^{3/2}} \, dx=\int \frac {x^2}{{\left (b\,x^2+a\right )}^2\,{\left (d\,x^2+c\right )}^{3/2}} \,d x \]
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