Optimal. Leaf size=45 \[ \frac {2 \sqrt {a+b x^n}}{n}-\frac {2 \sqrt {a} \tanh ^{-1}\left (\frac {\sqrt {a+b x^n}}{\sqrt {a}}\right )}{n} \]
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Rubi [A]
time = 0.02, antiderivative size = 45, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 4, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.267, Rules used = {272, 52, 65,
214} \begin {gather*} \frac {2 \sqrt {a+b x^n}}{n}-\frac {2 \sqrt {a} \tanh ^{-1}\left (\frac {\sqrt {a+b x^n}}{\sqrt {a}}\right )}{n} \end {gather*}
Antiderivative was successfully verified.
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Rule 52
Rule 65
Rule 214
Rule 272
Rubi steps
\begin {align*} \int \frac {\sqrt {a+b x^n}}{x} \, dx &=\frac {\text {Subst}\left (\int \frac {\sqrt {a+b x}}{x} \, dx,x,x^n\right )}{n}\\ &=\frac {2 \sqrt {a+b x^n}}{n}+\frac {a \text {Subst}\left (\int \frac {1}{x \sqrt {a+b x}} \, dx,x,x^n\right )}{n}\\ &=\frac {2 \sqrt {a+b x^n}}{n}+\frac {(2 a) \text {Subst}\left (\int \frac {1}{-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b x^n}\right )}{b n}\\ &=\frac {2 \sqrt {a+b x^n}}{n}-\frac {2 \sqrt {a} \tanh ^{-1}\left (\frac {\sqrt {a+b x^n}}{\sqrt {a}}\right )}{n}\\ \end {align*}
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Mathematica [A]
time = 0.04, size = 42, normalized size = 0.93 \begin {gather*} \frac {2 \left (\sqrt {a+b x^n}-\sqrt {a} \tanh ^{-1}\left (\frac {\sqrt {a+b x^n}}{\sqrt {a}}\right )\right )}{n} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.37, size = 36, normalized size = 0.80
method | result | size |
derivativedivides | \(\frac {2 \sqrt {a +b \,x^{n}}-2 \sqrt {a}\, \arctanh \left (\frac {\sqrt {a +b \,x^{n}}}{\sqrt {a}}\right )}{n}\) | \(36\) |
default | \(\frac {2 \sqrt {a +b \,x^{n}}-2 \sqrt {a}\, \arctanh \left (\frac {\sqrt {a +b \,x^{n}}}{\sqrt {a}}\right )}{n}\) | \(36\) |
risch | \(\frac {2 \sqrt {a +b \,{\mathrm e}^{n \ln \left (x \right )}}}{n}-\frac {2 \sqrt {a}\, \arctanh \left (\frac {\sqrt {a +b \,{\mathrm e}^{n \ln \left (x \right )}}}{\sqrt {a}}\right )}{n}\) | \(42\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.49, size = 54, normalized size = 1.20 \begin {gather*} \frac {\sqrt {a} \log \left (\frac {\sqrt {b x^{n} + a} - \sqrt {a}}{\sqrt {b x^{n} + a} + \sqrt {a}}\right )}{n} + \frac {2 \, \sqrt {b x^{n} + a}}{n} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.43, size = 91, normalized size = 2.02 \begin {gather*} \left [\frac {\sqrt {a} \log \left (\frac {b x^{n} - 2 \, \sqrt {b x^{n} + a} \sqrt {a} + 2 \, a}{x^{n}}\right ) + 2 \, \sqrt {b x^{n} + a}}{n}, \frac {2 \, {\left (\sqrt {-a} \arctan \left (\frac {\sqrt {b x^{n} + a} \sqrt {-a}}{a}\right ) + \sqrt {b x^{n} + a}\right )}}{n}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 76 vs.
\(2 (37) = 74\).
time = 0.77, size = 76, normalized size = 1.69 \begin {gather*} - \frac {2 \sqrt {a} \operatorname {asinh}{\left (\frac {\sqrt {a} x^{- \frac {n}{2}}}{\sqrt {b}} \right )}}{n} + \frac {2 a x^{- \frac {n}{2}}}{\sqrt {b} n \sqrt {\frac {a x^{- n}}{b} + 1}} + \frac {2 \sqrt {b} x^{\frac {n}{2}}}{n \sqrt {\frac {a x^{- n}}{b} + 1}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \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 = -0.02 \begin {gather*} \int \frac {\sqrt {a+b\,x^n}}{x} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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