Optimal. Leaf size=69 \[ -\frac {e^{n \tanh ^{-1}(a x)}}{a^2 c^2 \left (4-n^2\right )}+\frac {e^{n \tanh ^{-1}(a x)} (2-a n x)}{a^2 c^2 \left (4-n^2\right ) \left (1-a^2 x^2\right )} \]
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Rubi [A]
time = 0.18, antiderivative size = 102, normalized size of antiderivative = 1.48, number of steps
used = 3, number of rules used = 3, integrand size = 23, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.130, Rules used = {6280, 6271,
6272} \begin {gather*} \frac {n (n-2 a x) e^{n \tanh ^{-1}(a x)}}{2 a^2 c^2 \left (4-n^2\right ) \left (1-a^2 x^2\right )}-\frac {e^{n \tanh ^{-1}(a x)}}{a^2 c^2 \left (4-n^2\right )}+\frac {e^{n \tanh ^{-1}(a x)}}{2 a^2 c^2 \left (1-a^2 x^2\right )} \end {gather*}
Antiderivative was successfully verified.
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Rule 6271
Rule 6272
Rule 6280
Rubi steps
\begin {align*} \int \frac {e^{n \tanh ^{-1}(a x)} x}{\left (c-a^2 c x^2\right )^2} \, dx &=\frac {e^{n \tanh ^{-1}(a x)}}{2 a^2 c^2 \left (1-a^2 x^2\right )}-\frac {n \int \frac {e^{n \tanh ^{-1}(a x)}}{\left (c-a^2 c x^2\right )^2} \, dx}{2 a}\\ &=\frac {e^{n \tanh ^{-1}(a x)}}{2 a^2 c^2 \left (1-a^2 x^2\right )}+\frac {e^{n \tanh ^{-1}(a x)} n (n-2 a x)}{2 a^2 c^2 \left (4-n^2\right ) \left (1-a^2 x^2\right )}-\frac {n \int \frac {e^{n \tanh ^{-1}(a x)}}{c-a^2 c x^2} \, dx}{a c \left (4-n^2\right )}\\ &=-\frac {e^{n \tanh ^{-1}(a x)}}{a^2 c^2 \left (4-n^2\right )}+\frac {e^{n \tanh ^{-1}(a x)}}{2 a^2 c^2 \left (1-a^2 x^2\right )}+\frac {e^{n \tanh ^{-1}(a x)} n (n-2 a x)}{2 a^2 c^2 \left (4-n^2\right ) \left (1-a^2 x^2\right )}\\ \end {align*}
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Mathematica [A]
time = 0.03, size = 56, normalized size = 0.81 \begin {gather*} -\frac {(1-a x)^{-1-\frac {n}{2}} (1+a x)^{-1+\frac {n}{2}} \left (1-a n x+a^2 x^2\right )}{a^2 c^2 \left (-4+n^2\right )} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.07, size = 47, normalized size = 0.68
method | result | size |
gosper | \(\frac {{\mathrm e}^{n \arctanh \left (a x \right )} \left (a^{2} x^{2}-n a x +1\right )}{\left (a^{2} x^{2}-1\right ) c^{2} a^{2} \left (n^{2}-4\right )}\) | \(47\) |
risch | \(\frac {\left (a^{2} x^{2}-n a x +1\right ) \left (-a x +1\right )^{-\frac {n}{2}} \left (a x +1\right )^{\frac {n}{2}}}{\left (a^{2} x^{2}-1\right ) c^{2} a^{2} \left (n^{2}-4\right )}\) | \(59\) |
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*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.35, size = 79, normalized size = 1.14 \begin {gather*} -\frac {{\left (a^{2} x^{2} - a n x + 1\right )} \left (-\frac {a x + 1}{a x - 1}\right )^{\frac {1}{2} \, n}}{a^{2} c^{2} n^{2} - 4 \, a^{2} c^{2} - {\left (a^{4} c^{2} n^{2} - 4 \, a^{4} c^{2}\right )} x^{2}} \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*} \begin {cases} \frac {x^{2}}{2 c^{2}} & \text {for}\: a = 0 \\\tilde {\infty } x^{2} e^{- \infty n} & \text {for}\: a = - \frac {1}{x} \\\tilde {\infty } x^{2} e^{\infty n} & \text {for}\: a = \frac {1}{x} \\- \frac {a^{2} x^{2} \operatorname {atanh}{\left (a x \right )}}{4 a^{4} c^{2} x^{2} e^{2 \operatorname {atanh}{\left (a x \right )}} - 4 a^{2} c^{2} e^{2 \operatorname {atanh}{\left (a x \right )}}} - \frac {2 a x \operatorname {atanh}{\left (a x \right )}}{4 a^{4} c^{2} x^{2} e^{2 \operatorname {atanh}{\left (a x \right )}} - 4 a^{2} c^{2} e^{2 \operatorname {atanh}{\left (a x \right )}}} + \frac {a x}{4 a^{4} c^{2} x^{2} e^{2 \operatorname {atanh}{\left (a x \right )}} - 4 a^{2} c^{2} e^{2 \operatorname {atanh}{\left (a x \right )}}} - \frac {\operatorname {atanh}{\left (a x \right )}}{4 a^{4} c^{2} x^{2} e^{2 \operatorname {atanh}{\left (a x \right )}} - 4 a^{2} c^{2} e^{2 \operatorname {atanh}{\left (a x \right )}}} & \text {for}\: n = -2 \\\frac {\int \frac {x e^{2 \operatorname {atanh}{\left (a x \right )}}}{a^{4} x^{4} - 2 a^{2} x^{2} + 1}\, dx}{c^{2}} & \text {for}\: n = 2 \\\frac {a^{2} x^{2} e^{n \operatorname {atanh}{\left (a x \right )}}}{a^{4} c^{2} n^{2} x^{2} - 4 a^{4} c^{2} x^{2} - a^{2} c^{2} n^{2} + 4 a^{2} c^{2}} - \frac {a n x e^{n \operatorname {atanh}{\left (a x \right )}}}{a^{4} c^{2} n^{2} x^{2} - 4 a^{4} c^{2} x^{2} - a^{2} c^{2} n^{2} + 4 a^{2} c^{2}} + \frac {e^{n \operatorname {atanh}{\left (a x \right )}}}{a^{4} c^{2} n^{2} x^{2} - 4 a^{4} c^{2} x^{2} - a^{2} c^{2} n^{2} + 4 a^{2} c^{2}} & \text {otherwise} \end {cases} \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 [B]
time = 1.42, size = 46, normalized size = 0.67 \begin {gather*} \frac {{\mathrm {e}}^{n\,\mathrm {atanh}\left (a\,x\right )}\,\left (a^2\,x^2-n\,a\,x+1\right )}{a^2\,c^2\,\left (n^2-4\right )\,\left (a^2\,x^2-1\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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