Optimal. Leaf size=229 \[ -\frac {1}{4} a \text {RootSum}\left [\text {$\#$1}^4+2 \text {$\#$1}^2 b-4 \text {$\#$1} b+b^2+b\& ,\frac {-2 \text {$\#$1}^2 \log \left (\text {$\#$1}+\sqrt {a x-b}-\sqrt {\sqrt {a x-b}+a x}\right )+2 \text {$\#$1} \log \left (\text {$\#$1}+\sqrt {a x-b}-\sqrt {\sqrt {a x-b}+a x}\right )+2 b \log \left (\text {$\#$1}+\sqrt {a x-b}-\sqrt {\sqrt {a x-b}+a x}\right )-\log \left (\text {$\#$1}+\sqrt {a x-b}-\sqrt {\sqrt {a x-b}+a x}\right )}{\text {$\#$1}^3+\text {$\#$1} b-b}\& \right ]-\frac {\sqrt {\sqrt {a x-b}+a x}}{x} \]
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Rubi [A] time = 0.48, antiderivative size = 171, normalized size of antiderivative = 0.75, number of steps used = 7, number of rules used = 5, integrand size = 23, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.217, Rules used = {1014, 1036, 1030, 208, 205} \begin {gather*} -\frac {a \left (2 \sqrt {b}+1\right ) \tan ^{-1}\left (\frac {\sqrt {b}-\sqrt {a x-b}}{\sqrt {2} \sqrt [4]{b} \sqrt {\sqrt {a x-b}+a x}}\right )}{2 \sqrt {2} b^{3/4}}+\frac {a \left (1-2 \sqrt {b}\right ) \tanh ^{-1}\left (\frac {\sqrt {a x-b}+\sqrt {b}}{\sqrt {2} \sqrt [4]{b} \sqrt {\sqrt {a x-b}+a x}}\right )}{2 \sqrt {2} b^{3/4}}-\frac {\sqrt {\sqrt {a x-b}+a x}}{x} \end {gather*}
Antiderivative was successfully verified.
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Rule 205
Rule 208
Rule 1014
Rule 1030
Rule 1036
Rubi steps
\begin {align*} \int \frac {\sqrt {a x+\sqrt {-b+a x}}}{x^2} \, dx &=(2 a) \operatorname {Subst}\left (\int \frac {x \sqrt {b+x+x^2}}{\left (b+x^2\right )^2} \, dx,x,\sqrt {-b+a x}\right )\\ &=-\frac {\sqrt {a x+\sqrt {-b+a x}}}{x}-\frac {a \operatorname {Subst}\left (\int \frac {-\frac {b}{2}-b x}{\left (b+x^2\right ) \sqrt {b+x+x^2}} \, dx,x,\sqrt {-b+a x}\right )}{b}\\ &=-\frac {\sqrt {a x+\sqrt {-b+a x}}}{x}-\frac {a \operatorname {Subst}\left (\int \frac {-\frac {1}{2} \left (1-2 \sqrt {b}\right ) b^{3/2}+\frac {1}{2} \left (1-2 \sqrt {b}\right ) b x}{\left (b+x^2\right ) \sqrt {b+x+x^2}} \, dx,x,\sqrt {-b+a x}\right )}{2 b^{3/2}}+\frac {a \operatorname {Subst}\left (\int \frac {\frac {1}{2} \left (1+2 \sqrt {b}\right ) b^{3/2}+\frac {1}{2} \left (1+2 \sqrt {b}\right ) b x}{\left (b+x^2\right ) \sqrt {b+x+x^2}} \, dx,x,\sqrt {-b+a x}\right )}{2 b^{3/2}}\\ &=-\frac {\sqrt {a x+\sqrt {-b+a x}}}{x}-\frac {1}{4} \left (a \left (1-2 \sqrt {b}\right )^2 b^2\right ) \operatorname {Subst}\left (\int \frac {1}{-\frac {1}{2} \left (1-2 \sqrt {b}\right )^2 b^{9/2}+b x^2} \, dx,x,\frac {\left (1-2 \sqrt {b}\right ) b^{3/2} \left (\sqrt {b}+\sqrt {-b+a x}\right )}{2 \sqrt {a x+\sqrt {-b+a x}}}\right )-\frac {1}{4} \left (a \left (1+2 \sqrt {b}\right )^2 b^2\right ) \operatorname {Subst}\left (\int \frac {1}{\frac {1}{2} \left (1+2 \sqrt {b}\right )^2 b^{9/2}+b x^2} \, dx,x,\frac {\left (1+2 \sqrt {b}\right ) b^{3/2} \left (\sqrt {b}-\sqrt {-b+a x}\right )}{2 \sqrt {a x+\sqrt {-b+a x}}}\right )\\ &=-\frac {\sqrt {a x+\sqrt {-b+a x}}}{x}-\frac {a \left (1+2 \sqrt {b}\right ) \tan ^{-1}\left (\frac {\sqrt {b}-\sqrt {-b+a x}}{\sqrt {2} \sqrt [4]{b} \sqrt {a x+\sqrt {-b+a x}}}\right )}{2 \sqrt {2} b^{3/4}}+\frac {a \left (1-2 \sqrt {b}\right ) \tanh ^{-1}\left (\frac {\sqrt {b}+\sqrt {-b+a x}}{\sqrt {2} \sqrt [4]{b} \sqrt {a x+\sqrt {-b+a x}}}\right )}{2 \sqrt {2} b^{3/4}}\\ \end {align*}
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Mathematica [A] time = 0.24, size = 204, normalized size = 0.89 \begin {gather*} \frac {-4 (-b)^{3/4} \sqrt {\sqrt {a x-b}+a x}+a \left (2 \sqrt {-b}-1\right ) x \tan ^{-1}\left (\frac {\left (1-2 \sqrt {-b}\right ) \sqrt {a x-b}+2 b-\sqrt {-b}}{2 \sqrt [4]{-b} \sqrt {\sqrt {a x-b}+a x}}\right )-a \left (2 \sqrt {-b}+1\right ) x \tanh ^{-1}\left (\frac {\left (2 \sqrt {-b}+1\right ) \sqrt {a x-b}+2 b+\sqrt {-b}}{2 \sqrt [4]{-b} \sqrt {\sqrt {a x-b}+a x}}\right )}{4 (-b)^{3/4} x} \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [A] time = 0.48, size = 430, normalized size = 1.88 \begin {gather*} -\frac {\sqrt {a x+\sqrt {-b+a x}}}{x}-a \text {RootSum}\left [1-b+b^2+4 \text {$\#$1}+6 \text {$\#$1}^2+2 b \text {$\#$1}^2+4 \text {$\#$1}^3+\text {$\#$1}^4\&,\frac {b \log \left (-1-\sqrt {-b+a x}+\sqrt {a x+\sqrt {-b+a x}}-\text {$\#$1}\right )-\log \left (-1-\sqrt {-b+a x}+\sqrt {a x+\sqrt {-b+a x}}-\text {$\#$1}\right ) \text {$\#$1}^2}{1+3 \text {$\#$1}+b \text {$\#$1}+3 \text {$\#$1}^2+\text {$\#$1}^3}\&\right ]+a \text {RootSum}\left [1-8 b+16 b^2+4 \text {$\#$1}-16 b \text {$\#$1}+6 \text {$\#$1}^2+8 b \text {$\#$1}^2+4 \text {$\#$1}^3+\text {$\#$1}^4\&,\frac {-\log \left (-1-2 \sqrt {-b+a x}+2 \sqrt {a x+\sqrt {-b+a x}}-\text {$\#$1}\right )+4 b \log \left (-1-2 \sqrt {-b+a x}+2 \sqrt {a x+\sqrt {-b+a x}}-\text {$\#$1}\right )+4 \log \left (-1-2 \sqrt {-b+a x}+2 \sqrt {a x+\sqrt {-b+a x}}-\text {$\#$1}\right ) \text {$\#$1}-\log \left (-1-2 \sqrt {-b+a x}+2 \sqrt {a x+\sqrt {-b+a x}}-\text {$\#$1}\right ) \text {$\#$1}^2}{1-4 b+3 \text {$\#$1}+4 b \text {$\#$1}+3 \text {$\#$1}^2+\text {$\#$1}^3}\&\right ] \end {gather*}
Antiderivative was successfully verified.
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fricas [F(-1)] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [B] time = 0.99, size = 240, normalized size = 1.05 \begin {gather*} \frac {2 \, a^{2} {\left (\sqrt {a x - b} - \sqrt {a x + \sqrt {a x - b}}\right )}^{3} + 2 \, a^{2} b {\left (\sqrt {a x - b} - \sqrt {a x + \sqrt {a x - b}}\right )} + 3 \, a^{2} {\left (\sqrt {a x - b} - \sqrt {a x + \sqrt {a x - b}}\right )}^{2} + a^{2} b + a^{2} {\left (\sqrt {a x - b} - \sqrt {a x + \sqrt {a x - b}}\right )}}{{\left ({\left (\sqrt {a x - b} - \sqrt {a x + \sqrt {a x - b}}\right )}^{4} + 2 \, b {\left (\sqrt {a x - b} - \sqrt {a x + \sqrt {a x - b}}\right )}^{2} + b^{2} + 4 \, b {\left (\sqrt {a x - b} - \sqrt {a x + \sqrt {a x - b}}\right )} + b\right )} a} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 1.06, size = 1056, normalized size = 4.61
method | result | size |
derivativedivides | \(2 a \left (\frac {\sqrt {-b}\, \left (\frac {\left (\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}\right )^{\frac {3}{2}}}{\sqrt {-b}\, \left (\sqrt {a x -b}+\sqrt {-b}\right )}-\frac {\left (1-2 \sqrt {-b}\right ) \left (\sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}+\frac {\left (1-2 \sqrt {-b}\right ) \ln \left (\frac {1}{2}+\sqrt {a x -b}+\sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}\right )}{2}+\frac {\sqrt {-b}\, \ln \left (\frac {-2 \sqrt {-b}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )+2 \sqrt {-\sqrt {-b}}\, \sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}}{\sqrt {a x -b}+\sqrt {-b}}\right )}{\sqrt {-\sqrt {-b}}}\right )}{2 \sqrt {-b}}-\frac {2 \left (\frac {\left (2 \sqrt {a x -b}+1\right ) \sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}}{4}+\frac {\left (-4 \sqrt {-b}-\left (1-2 \sqrt {-b}\right )^{2}\right ) \ln \left (\frac {1}{2}+\sqrt {a x -b}+\sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}\right )}{8}\right )}{\sqrt {-b}}\right )}{4 b}-\frac {\sqrt {-b}\, \left (-\frac {\left (\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}\right )^{\frac {3}{2}}}{\sqrt {-b}\, \left (\sqrt {a x -b}-\sqrt {-b}\right )}+\frac {\left (1+2 \sqrt {-b}\right ) \left (\sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}+\frac {\left (1+2 \sqrt {-b}\right ) \ln \left (\frac {1}{2}+\sqrt {a x -b}+\sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}\right )}{2}-\left (-b \right )^{\frac {1}{4}} \ln \left (\frac {2 \sqrt {-b}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+2 \left (-b \right )^{\frac {1}{4}} \sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}}{\sqrt {a x -b}-\sqrt {-b}}\right )\right )}{2 \sqrt {-b}}+\frac {\frac {\left (2 \sqrt {a x -b}+1\right ) \sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}}{2}+\frac {\left (4 \sqrt {-b}-\left (1+2 \sqrt {-b}\right )^{2}\right ) \ln \left (\frac {1}{2}+\sqrt {a x -b}+\sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}\right )}{4}}{\sqrt {-b}}\right )}{4 b}\right )\) | \(1056\) |
default | \(2 a \left (\frac {\sqrt {-b}\, \left (\frac {\left (\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}\right )^{\frac {3}{2}}}{\sqrt {-b}\, \left (\sqrt {a x -b}+\sqrt {-b}\right )}-\frac {\left (1-2 \sqrt {-b}\right ) \left (\sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}+\frac {\left (1-2 \sqrt {-b}\right ) \ln \left (\frac {1}{2}+\sqrt {a x -b}+\sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}\right )}{2}+\frac {\sqrt {-b}\, \ln \left (\frac {-2 \sqrt {-b}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )+2 \sqrt {-\sqrt {-b}}\, \sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}}{\sqrt {a x -b}+\sqrt {-b}}\right )}{\sqrt {-\sqrt {-b}}}\right )}{2 \sqrt {-b}}-\frac {2 \left (\frac {\left (2 \sqrt {a x -b}+1\right ) \sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}}{4}+\frac {\left (-4 \sqrt {-b}-\left (1-2 \sqrt {-b}\right )^{2}\right ) \ln \left (\frac {1}{2}+\sqrt {a x -b}+\sqrt {\left (\sqrt {a x -b}+\sqrt {-b}\right )^{2}+\left (1-2 \sqrt {-b}\right ) \left (\sqrt {a x -b}+\sqrt {-b}\right )-\sqrt {-b}}\right )}{8}\right )}{\sqrt {-b}}\right )}{4 b}-\frac {\sqrt {-b}\, \left (-\frac {\left (\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}\right )^{\frac {3}{2}}}{\sqrt {-b}\, \left (\sqrt {a x -b}-\sqrt {-b}\right )}+\frac {\left (1+2 \sqrt {-b}\right ) \left (\sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}+\frac {\left (1+2 \sqrt {-b}\right ) \ln \left (\frac {1}{2}+\sqrt {a x -b}+\sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}\right )}{2}-\left (-b \right )^{\frac {1}{4}} \ln \left (\frac {2 \sqrt {-b}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+2 \left (-b \right )^{\frac {1}{4}} \sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}}{\sqrt {a x -b}-\sqrt {-b}}\right )\right )}{2 \sqrt {-b}}+\frac {\frac {\left (2 \sqrt {a x -b}+1\right ) \sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}}{2}+\frac {\left (4 \sqrt {-b}-\left (1+2 \sqrt {-b}\right )^{2}\right ) \ln \left (\frac {1}{2}+\sqrt {a x -b}+\sqrt {\left (\sqrt {a x -b}-\sqrt {-b}\right )^{2}+\left (1+2 \sqrt {-b}\right ) \left (\sqrt {a x -b}-\sqrt {-b}\right )+\sqrt {-b}}\right )}{4}}{\sqrt {-b}}\right )}{4 b}\right )\) | \(1056\) |
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 {a x + \sqrt {a x - b}}}{x^{2}}\,{d x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.00 \begin {gather*} \int \frac {\sqrt {a\,x+\sqrt {a\,x-b}}}{x^2} \,d x \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 {a x + \sqrt {a x - b}}}{x^{2}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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