Optimal. Leaf size=75 \[ \frac {2 \sqrt {a^2+2 a b \sqrt {x}+b^2 x}}{b^2}-\frac {2 a \left (a+b \sqrt {x}\right ) \log \left (a+b \sqrt {x}\right )}{b^2 \sqrt {a^2+2 a b \sqrt {x}+b^2 x}} \]
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Rubi [A]
time = 0.03, antiderivative size = 75, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 4, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {1355, 654, 622,
31} \begin {gather*} \frac {2 \sqrt {a^2+2 a b \sqrt {x}+b^2 x}}{b^2}-\frac {2 a \left (a+b \sqrt {x}\right ) \log \left (a+b \sqrt {x}\right )}{b^2 \sqrt {a^2+2 a b \sqrt {x}+b^2 x}} \end {gather*}
Antiderivative was successfully verified.
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Rule 31
Rule 622
Rule 654
Rule 1355
Rubi steps
\begin {align*} \int \frac {1}{\sqrt {a^2+2 a b \sqrt {x}+b^2 x}} \, dx &=2 \text {Subst}\left (\int \frac {x}{\sqrt {a^2+2 a b x+b^2 x^2}} \, dx,x,\sqrt {x}\right )\\ &=\frac {2 \sqrt {a^2+2 a b \sqrt {x}+b^2 x}}{b^2}-\frac {(2 a) \text {Subst}\left (\int \frac {1}{\sqrt {a^2+2 a b x+b^2 x^2}} \, dx,x,\sqrt {x}\right )}{b}\\ &=\frac {2 \sqrt {a^2+2 a b \sqrt {x}+b^2 x}}{b^2}-\frac {\left (2 a \left (a+b \sqrt {x}\right )\right ) \text {Subst}\left (\int \frac {1}{a b+b^2 x} \, dx,x,\sqrt {x}\right )}{\sqrt {a^2+2 a b \sqrt {x}+b^2 x}}\\ &=\frac {2 \sqrt {a^2+2 a b \sqrt {x}+b^2 x}}{b^2}-\frac {2 a \left (a+b \sqrt {x}\right ) \log \left (a+b \sqrt {x}\right )}{b^2 \sqrt {a^2+2 a b \sqrt {x}+b^2 x}}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 50, normalized size = 0.67 \begin {gather*} \frac {2 \left (a+b \sqrt {x}\right ) \left (b \sqrt {x}-a \log \left (a+b \sqrt {x}\right )\right )}{b^2 \sqrt {\left (a+b \sqrt {x}\right )^2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.06, size = 50, normalized size = 0.67
method | result | size |
derivativedivides | \(-\frac {2 \left (a +b \sqrt {x}\right ) \left (a \ln \left (a +b \sqrt {x}\right )-b \sqrt {x}\right )}{\sqrt {\left (a +b \sqrt {x}\right )^{2}}\, b^{2}}\) | \(41\) |
default | \(\frac {2 \sqrt {a^{2}+b^{2} x +2 a b \sqrt {x}}\, \left (b \sqrt {x}-a \ln \left (a +b \sqrt {x}\right )\right )}{\left (a +b \sqrt {x}\right ) b^{2}}\) | \(50\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.34, size = 23, normalized size = 0.31 \begin {gather*} -\frac {2 \, a \log \left (b \sqrt {x} + a\right )}{b^{2}} + \frac {2 \, \sqrt {x}}{b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F(-1)] Timed out
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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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{\sqrt {a^{2} + 2 a b \sqrt {x} + b^{2} x}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 4.73, size = 45, normalized size = 0.60 \begin {gather*} -\frac {2 \, {\left | a \right |} \log \left ({\left | \sqrt {b^{2} x} \mathrm {sgn}\left (a\right ) \mathrm {sgn}\left (b\right ) + {\left | a \right |} \right |}\right )}{b^{2}} + \frac {2 \, \sqrt {b^{2} x}}{b^{2} \mathrm {sgn}\left (a\right ) \mathrm {sgn}\left (b\right )} \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 = -0.01 \begin {gather*} \int \frac {1}{\sqrt {b^2\,x+a^2+2\,a\,b\,\sqrt {x}}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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