Optimal. Leaf size=53 \[ \frac {2 \sqrt {-a+b (c x)^n}}{n}-\frac {2 \sqrt {a} \tan ^{-1}\left (\frac {\sqrt {-a+b (c x)^n}}{\sqrt {a}}\right )}{n} \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.03, antiderivative size = 53, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 6, integrand size = 19, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.316, Rules used = {374, 12, 272,
52, 65, 211} \begin {gather*} \frac {2 \sqrt {b (c x)^n-a}}{n}-\frac {2 \sqrt {a} \text {ArcTan}\left (\frac {\sqrt {b (c x)^n-a}}{\sqrt {a}}\right )}{n} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 12
Rule 52
Rule 65
Rule 211
Rule 272
Rule 374
Rubi steps
\begin {align*} \int \frac {\sqrt {-a+b (c x)^n}}{x} \, dx &=\frac {\text {Subst}\left (\int \frac {c \sqrt {-a+b x^n}}{x} \, dx,x,c x\right )}{c}\\ &=\text {Subst}\left (\int \frac {\sqrt {-a+b x^n}}{x} \, dx,x,c x\right )\\ &=\frac {\text {Subst}\left (\int \frac {\sqrt {-a+b x}}{x} \, dx,x,(c x)^n\right )}{n}\\ &=\frac {2 \sqrt {-a+b (c x)^n}}{n}-\frac {a \text {Subst}\left (\int \frac {1}{x \sqrt {-a+b x}} \, dx,x,(c x)^n\right )}{n}\\ &=\frac {2 \sqrt {-a+b (c x)^n}}{n}-\frac {(2 a) \text {Subst}\left (\int \frac {1}{\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {-a+b (c x)^n}\right )}{b n}\\ &=\frac {2 \sqrt {-a+b (c x)^n}}{n}-\frac {2 \sqrt {a} \tan ^{-1}\left (\frac {\sqrt {-a+b (c x)^n}}{\sqrt {a}}\right )}{n}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A]
time = 0.10, size = 50, normalized size = 0.94 \begin {gather*} \frac {2 \left (\sqrt {-a+b (c x)^n}-\sqrt {a} \tan ^{-1}\left (\frac {\sqrt {-a+b (c x)^n}}{\sqrt {a}}\right )\right )}{n} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A]
time = 0.61, size = 44, normalized size = 0.83
method | result | size |
derivativedivides | \(\frac {2 \sqrt {-a +b \left (c x \right )^{n}}-2 \sqrt {a}\, \arctan \left (\frac {\sqrt {-a +b \left (c x \right )^{n}}}{\sqrt {a}}\right )}{n}\) | \(44\) |
default | \(\frac {2 \sqrt {-a +b \left (c x \right )^{n}}-2 \sqrt {a}\, \arctan \left (\frac {\sqrt {-a +b \left (c x \right )^{n}}}{\sqrt {a}}\right )}{n}\) | \(44\) |
risch | \(-\frac {2 \left (a -b \,{\mathrm e}^{n \ln \left (c x \right )}\right )}{n \sqrt {-a +b \,{\mathrm e}^{n \ln \left (c x \right )}}}-\frac {2 \sqrt {a}\, \arctan \left (\frac {\sqrt {-a +b \,{\mathrm e}^{n \ln \left (c x \right )}}}{\sqrt {a}}\right )}{n}\) | \(62\) |
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A]
time = 0.39, size = 110, normalized size = 2.08 \begin {gather*} \left [\frac {\sqrt {-a} \log \left (\frac {\left (c x\right )^{n} b - 2 \, \sqrt {\left (c x\right )^{n} b - a} \sqrt {-a} - 2 \, a}{\left (c x\right )^{n}}\right ) + 2 \, \sqrt {\left (c x\right )^{n} b - a}}{n}, -\frac {2 \, {\left (\sqrt {a} \arctan \left (\frac {\sqrt {\left (c x\right )^{n} b - a}}{\sqrt {a}}\right ) - \sqrt {\left (c x\right )^{n} b - a}\right )}}{n}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {\sqrt {- a + b \left (c x\right )^{n}}}{x}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
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.
[In]
[Out]
________________________________________________________________________________________
Mupad [F]
time = 0.00, size = -1, normalized size = -0.02 \begin {gather*} \int \frac {\sqrt {b\,{\left (c\,x\right )}^n-a}}{x} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________