Optimal. Leaf size=159 \[ -\frac {\sqrt {b} (4 b c-3 a d) \tanh ^{-1}\left (\frac {\sqrt {b} \sqrt {c+d x^2}}{\sqrt {b c-a d}}\right )}{2 a^3 \sqrt {b c-a d}}+\frac {(4 b c-a d) \tanh ^{-1}\left (\frac {\sqrt {c+d x^2}}{\sqrt {c}}\right )}{2 a^3 \sqrt {c}}-\frac {b \sqrt {c+d x^2}}{a^2 \left (a+b x^2\right )}-\frac {\sqrt {c+d x^2}}{2 a x^2 \left (a+b x^2\right )} \]
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Rubi [A] time = 0.21, antiderivative size = 159, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 6, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {446, 99, 151, 156, 63, 208} \begin {gather*} -\frac {b \sqrt {c+d x^2}}{a^2 \left (a+b x^2\right )}-\frac {\sqrt {b} (4 b c-3 a d) \tanh ^{-1}\left (\frac {\sqrt {b} \sqrt {c+d x^2}}{\sqrt {b c-a d}}\right )}{2 a^3 \sqrt {b c-a d}}+\frac {(4 b c-a d) \tanh ^{-1}\left (\frac {\sqrt {c+d x^2}}{\sqrt {c}}\right )}{2 a^3 \sqrt {c}}-\frac {\sqrt {c+d x^2}}{2 a x^2 \left (a+b x^2\right )} \end {gather*}
Antiderivative was successfully verified.
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Rule 63
Rule 99
Rule 151
Rule 156
Rule 208
Rule 446
Rubi steps
\begin {align*} \int \frac {\sqrt {c+d x^2}}{x^3 \left (a+b x^2\right )^2} \, dx &=\frac {1}{2} \operatorname {Subst}\left (\int \frac {\sqrt {c+d x}}{x^2 (a+b x)^2} \, dx,x,x^2\right )\\ &=-\frac {\sqrt {c+d x^2}}{2 a x^2 \left (a+b x^2\right )}+\frac {\operatorname {Subst}\left (\int \frac {\frac {1}{2} (-4 b c+a d)-\frac {3 b d x}{2}}{x (a+b x)^2 \sqrt {c+d x}} \, dx,x,x^2\right )}{2 a}\\ &=-\frac {b \sqrt {c+d x^2}}{a^2 \left (a+b x^2\right )}-\frac {\sqrt {c+d x^2}}{2 a x^2 \left (a+b x^2\right )}+\frac {\operatorname {Subst}\left (\int \frac {-\frac {1}{2} (b c-a d) (4 b c-a d)-b d (b c-a d) x}{x (a+b x) \sqrt {c+d x}} \, dx,x,x^2\right )}{2 a^2 (b c-a d)}\\ &=-\frac {b \sqrt {c+d x^2}}{a^2 \left (a+b x^2\right )}-\frac {\sqrt {c+d x^2}}{2 a x^2 \left (a+b x^2\right )}+\frac {(b (4 b c-3 a d)) \operatorname {Subst}\left (\int \frac {1}{(a+b x) \sqrt {c+d x}} \, dx,x,x^2\right )}{4 a^3}-\frac {(4 b c-a d) \operatorname {Subst}\left (\int \frac {1}{x \sqrt {c+d x}} \, dx,x,x^2\right )}{4 a^3}\\ &=-\frac {b \sqrt {c+d x^2}}{a^2 \left (a+b x^2\right )}-\frac {\sqrt {c+d x^2}}{2 a x^2 \left (a+b x^2\right )}+\frac {(b (4 b c-3 a d)) \operatorname {Subst}\left (\int \frac {1}{a-\frac {b c}{d}+\frac {b x^2}{d}} \, dx,x,\sqrt {c+d x^2}\right )}{2 a^3 d}-\frac {(4 b c-a d) \operatorname {Subst}\left (\int \frac {1}{-\frac {c}{d}+\frac {x^2}{d}} \, dx,x,\sqrt {c+d x^2}\right )}{2 a^3 d}\\ &=-\frac {b \sqrt {c+d x^2}}{a^2 \left (a+b x^2\right )}-\frac {\sqrt {c+d x^2}}{2 a x^2 \left (a+b x^2\right )}+\frac {(4 b c-a d) \tanh ^{-1}\left (\frac {\sqrt {c+d x^2}}{\sqrt {c}}\right )}{2 a^3 \sqrt {c}}-\frac {\sqrt {b} (4 b c-3 a d) \tanh ^{-1}\left (\frac {\sqrt {b} \sqrt {c+d x^2}}{\sqrt {b c-a d}}\right )}{2 a^3 \sqrt {b c-a d}}\\ \end {align*}
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Mathematica [A] time = 0.23, size = 190, normalized size = 1.19 \begin {gather*} \frac {\sqrt {c} \left (a \left (a+2 b x^2\right ) \sqrt {c+d x^2} (b c-a d)+\sqrt {b} x^2 \left (a+b x^2\right ) (4 b c-3 a d) \sqrt {b c-a d} \tanh ^{-1}\left (\frac {\sqrt {b} \sqrt {c+d x^2}}{\sqrt {b c-a d}}\right )\right )-x^2 \left (a+b x^2\right ) \left (a^2 d^2-5 a b c d+4 b^2 c^2\right ) \tanh ^{-1}\left (\frac {\sqrt {c+d x^2}}{\sqrt {c}}\right )}{2 a^3 \sqrt {c} x^2 \left (a+b x^2\right ) (a d-b c)} \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [A] time = 0.56, size = 157, normalized size = 0.99 \begin {gather*} \frac {\left (3 a \sqrt {b} d-4 b^{3/2} c\right ) \tan ^{-1}\left (\frac {\sqrt {b} \sqrt {c+d x^2} \sqrt {a d-b c}}{b c-a d}\right )}{2 a^3 \sqrt {a d-b c}}+\frac {(4 b c-a d) \tanh ^{-1}\left (\frac {\sqrt {c+d x^2}}{\sqrt {c}}\right )}{2 a^3 \sqrt {c}}+\frac {\left (-a-2 b x^2\right ) \sqrt {c+d x^2}}{2 a^2 x^2 \left (a+b x^2\right )} \end {gather*}
Antiderivative was successfully verified.
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fricas [A] time = 1.64, size = 1043, normalized size = 6.56 \begin {gather*} \left [-\frac {{\left ({\left (4 \, b^{2} c^{2} - 3 \, a b c d\right )} x^{4} + {\left (4 \, a b c^{2} - 3 \, a^{2} c d\right )} x^{2}\right )} \sqrt {\frac {b}{b c - a d}} \log \left (\frac {b^{2} d^{2} x^{4} + 8 \, b^{2} c^{2} - 8 \, a b c d + a^{2} d^{2} + 2 \, {\left (4 \, b^{2} c d - 3 \, a b d^{2}\right )} x^{2} + 4 \, {\left (2 \, b^{2} c^{2} - 3 \, a b c d + a^{2} d^{2} + {\left (b^{2} c d - a b d^{2}\right )} x^{2}\right )} \sqrt {d x^{2} + c} \sqrt {\frac {b}{b c - a d}}}{b^{2} x^{4} + 2 \, a b x^{2} + a^{2}}\right ) + 2 \, {\left ({\left (4 \, b^{2} c - a b d\right )} x^{4} + {\left (4 \, a b c - a^{2} d\right )} x^{2}\right )} \sqrt {c} \log \left (-\frac {d x^{2} - 2 \, \sqrt {d x^{2} + c} \sqrt {c} + 2 \, c}{x^{2}}\right ) + 4 \, {\left (2 \, a b c x^{2} + a^{2} c\right )} \sqrt {d x^{2} + c}}{8 \, {\left (a^{3} b c x^{4} + a^{4} c x^{2}\right )}}, -\frac {4 \, {\left ({\left (4 \, b^{2} c - a b d\right )} x^{4} + {\left (4 \, a b c - a^{2} d\right )} x^{2}\right )} \sqrt {-c} \arctan \left (\frac {\sqrt {-c}}{\sqrt {d x^{2} + c}}\right ) + {\left ({\left (4 \, b^{2} c^{2} - 3 \, a b c d\right )} x^{4} + {\left (4 \, a b c^{2} - 3 \, a^{2} c d\right )} x^{2}\right )} \sqrt {\frac {b}{b c - a d}} \log \left (\frac {b^{2} d^{2} x^{4} + 8 \, b^{2} c^{2} - 8 \, a b c d + a^{2} d^{2} + 2 \, {\left (4 \, b^{2} c d - 3 \, a b d^{2}\right )} x^{2} + 4 \, {\left (2 \, b^{2} c^{2} - 3 \, a b c d + a^{2} d^{2} + {\left (b^{2} c d - a b d^{2}\right )} x^{2}\right )} \sqrt {d x^{2} + c} \sqrt {\frac {b}{b c - a d}}}{b^{2} x^{4} + 2 \, a b x^{2} + a^{2}}\right ) + 4 \, {\left (2 \, a b c x^{2} + a^{2} c\right )} \sqrt {d x^{2} + c}}{8 \, {\left (a^{3} b c x^{4} + a^{4} c x^{2}\right )}}, \frac {{\left ({\left (4 \, b^{2} c^{2} - 3 \, a b c d\right )} x^{4} + {\left (4 \, a b c^{2} - 3 \, a^{2} c d\right )} x^{2}\right )} \sqrt {-\frac {b}{b c - a d}} \arctan \left (\frac {{\left (b d x^{2} + 2 \, b c - a d\right )} \sqrt {d x^{2} + c} \sqrt {-\frac {b}{b c - a d}}}{2 \, {\left (b d x^{2} + b c\right )}}\right ) - {\left ({\left (4 \, b^{2} c - a b d\right )} x^{4} + {\left (4 \, a b c - a^{2} d\right )} x^{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 \, a b c x^{2} + a^{2} c\right )} \sqrt {d x^{2} + c}}{4 \, {\left (a^{3} b c x^{4} + a^{4} c x^{2}\right )}}, \frac {{\left ({\left (4 \, b^{2} c^{2} - 3 \, a b c d\right )} x^{4} + {\left (4 \, a b c^{2} - 3 \, a^{2} c d\right )} x^{2}\right )} \sqrt {-\frac {b}{b c - a d}} \arctan \left (\frac {{\left (b d x^{2} + 2 \, b c - a d\right )} \sqrt {d x^{2} + c} \sqrt {-\frac {b}{b c - a d}}}{2 \, {\left (b d x^{2} + b c\right )}}\right ) - 2 \, {\left ({\left (4 \, b^{2} c - a b d\right )} x^{4} + {\left (4 \, a b c - a^{2} d\right )} x^{2}\right )} \sqrt {-c} \arctan \left (\frac {\sqrt {-c}}{\sqrt {d x^{2} + c}}\right ) - 2 \, {\left (2 \, a b c x^{2} + a^{2} c\right )} \sqrt {d x^{2} + c}}{4 \, {\left (a^{3} b c x^{4} + a^{4} c x^{2}\right )}}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.36, size = 183, normalized size = 1.15 \begin {gather*} \frac {{\left (4 \, b^{2} c - 3 \, a b d\right )} \arctan \left (\frac {\sqrt {d x^{2} + c} b}{\sqrt {-b^{2} c + a b d}}\right )}{2 \, \sqrt {-b^{2} c + a b d} a^{3}} - \frac {{\left (4 \, b c - a d\right )} \arctan \left (\frac {\sqrt {d x^{2} + c}}{\sqrt {-c}}\right )}{2 \, a^{3} \sqrt {-c}} - \frac {2 \, {\left (d x^{2} + c\right )}^{\frac {3}{2}} b d - 2 \, \sqrt {d x^{2} + c} b c d + \sqrt {d x^{2} + c} a d^{2}}{2 \, {\left ({\left (d x^{2} + c\right )}^{2} b - 2 \, {\left (d x^{2} + c\right )} b c + b c^{2} + {\left (d x^{2} + c\right )} a d - a c d\right )} a^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.02, size = 2669, normalized size = 16.79
result too large to display
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {\sqrt {d x^{2} + c}}{{\left (b x^{2} + a\right )}^{2} x^{3}}\,{d x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 1.69, size = 1193, normalized size = 7.50 \begin {gather*} \frac {\mathrm {atanh}\left (\frac {b^2\,d^6\,\sqrt {d\,x^2+c}}{4\,c^{3/2}\,\left (\frac {b^3\,d^5}{a}-\frac {b^2\,d^6}{4\,c}\right )}-\frac {b^3\,d^5\,\sqrt {d\,x^2+c}}{\sqrt {c}\,\left (b^3\,d^5-\frac {a\,b^2\,d^6}{4\,c}\right )}\right )\,\left (a\,d-4\,b\,c\right )}{2\,a^3\,\sqrt {c}}-\frac {\frac {b\,d\,{\left (d\,x^2+c\right )}^{3/2}}{a^2}+\frac {d\,\sqrt {d\,x^2+c}\,\left (a\,d-2\,b\,c\right )}{2\,a^2}}{\left (d\,x^2+c\right )\,\left (a\,d-2\,b\,c\right )+b\,{\left (d\,x^2+c\right )}^2+b\,c^2-a\,c\,d}+\frac {\mathrm {atan}\left (\frac {\frac {\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (\frac {\sqrt {d\,x^2+c}\,\left (5\,a^2\,b^3\,d^4-16\,a\,b^4\,c\,d^3+16\,b^5\,c^2\,d^2\right )}{a^4}-\frac {\left (\frac {2\,a^7\,b^2\,d^4-4\,a^6\,b^3\,c\,d^3}{a^6}-\frac {\left (8\,a^7\,b^2\,d^3-16\,a^6\,b^3\,c\,d^2\right )\,\sqrt {d\,x^2+c}\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )}{4\,a^4\,\left (a^4\,d-a^3\,b\,c\right )}\right )\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )}{4\,\left (a^4\,d-a^3\,b\,c\right )}\right )\,\left (3\,a\,d-4\,b\,c\right )\,1{}\mathrm {i}}{4\,\left (a^4\,d-a^3\,b\,c\right )}+\frac {\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (\frac {\sqrt {d\,x^2+c}\,\left (5\,a^2\,b^3\,d^4-16\,a\,b^4\,c\,d^3+16\,b^5\,c^2\,d^2\right )}{a^4}+\frac {\left (\frac {2\,a^7\,b^2\,d^4-4\,a^6\,b^3\,c\,d^3}{a^6}+\frac {\left (8\,a^7\,b^2\,d^3-16\,a^6\,b^3\,c\,d^2\right )\,\sqrt {d\,x^2+c}\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )}{4\,a^4\,\left (a^4\,d-a^3\,b\,c\right )}\right )\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )}{4\,\left (a^4\,d-a^3\,b\,c\right )}\right )\,\left (3\,a\,d-4\,b\,c\right )\,1{}\mathrm {i}}{4\,\left (a^4\,d-a^3\,b\,c\right )}}{\frac {\frac {3\,a^2\,b^3\,d^5}{2}-8\,a\,b^4\,c\,d^4+8\,b^5\,c^2\,d^3}{a^6}-\frac {\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (\frac {\sqrt {d\,x^2+c}\,\left (5\,a^2\,b^3\,d^4-16\,a\,b^4\,c\,d^3+16\,b^5\,c^2\,d^2\right )}{a^4}-\frac {\left (\frac {2\,a^7\,b^2\,d^4-4\,a^6\,b^3\,c\,d^3}{a^6}-\frac {\left (8\,a^7\,b^2\,d^3-16\,a^6\,b^3\,c\,d^2\right )\,\sqrt {d\,x^2+c}\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )}{4\,a^4\,\left (a^4\,d-a^3\,b\,c\right )}\right )\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )}{4\,\left (a^4\,d-a^3\,b\,c\right )}\right )\,\left (3\,a\,d-4\,b\,c\right )}{4\,\left (a^4\,d-a^3\,b\,c\right )}+\frac {\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (\frac {\sqrt {d\,x^2+c}\,\left (5\,a^2\,b^3\,d^4-16\,a\,b^4\,c\,d^3+16\,b^5\,c^2\,d^2\right )}{a^4}+\frac {\left (\frac {2\,a^7\,b^2\,d^4-4\,a^6\,b^3\,c\,d^3}{a^6}+\frac {\left (8\,a^7\,b^2\,d^3-16\,a^6\,b^3\,c\,d^2\right )\,\sqrt {d\,x^2+c}\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )}{4\,a^4\,\left (a^4\,d-a^3\,b\,c\right )}\right )\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )}{4\,\left (a^4\,d-a^3\,b\,c\right )}\right )\,\left (3\,a\,d-4\,b\,c\right )}{4\,\left (a^4\,d-a^3\,b\,c\right )}}\right )\,\sqrt {-b\,\left (a\,d-b\,c\right )}\,\left (3\,a\,d-4\,b\,c\right )\,1{}\mathrm {i}}{2\,\left (a^4\,d-a^3\,b\,c\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {\sqrt {c + d x^{2}}}{x^{3} \left (a + b x^{2}\right )^{2}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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