Optimal. Leaf size=80 \[ -\frac {b}{18 c (1+c x)^3}-\frac {b}{24 c (1+c x)^2}-\frac {b}{24 c (1+c x)}+\frac {b \tanh ^{-1}(c x)}{24 c}-\frac {a+b \tanh ^{-1}(c x)}{3 c (1+c x)^3} \]
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Rubi [A]
time = 0.04, antiderivative size = 80, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 4, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {6063, 641, 46,
213} \begin {gather*} -\frac {a+b \tanh ^{-1}(c x)}{3 c (c x+1)^3}-\frac {b}{24 c (c x+1)}-\frac {b}{24 c (c x+1)^2}-\frac {b}{18 c (c x+1)^3}+\frac {b \tanh ^{-1}(c x)}{24 c} \end {gather*}
Antiderivative was successfully verified.
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Rule 46
Rule 213
Rule 641
Rule 6063
Rubi steps
\begin {align*} \int \frac {a+b \tanh ^{-1}(c x)}{(1+c x)^4} \, dx &=-\frac {a+b \tanh ^{-1}(c x)}{3 c (1+c x)^3}+\frac {1}{3} b \int \frac {1}{(1+c x)^3 \left (1-c^2 x^2\right )} \, dx\\ &=-\frac {a+b \tanh ^{-1}(c x)}{3 c (1+c x)^3}+\frac {1}{3} b \int \frac {1}{(1-c x) (1+c x)^4} \, dx\\ &=-\frac {a+b \tanh ^{-1}(c x)}{3 c (1+c x)^3}+\frac {1}{3} b \int \left (\frac {1}{2 (1+c x)^4}+\frac {1}{4 (1+c x)^3}+\frac {1}{8 (1+c x)^2}-\frac {1}{8 \left (-1+c^2 x^2\right )}\right ) \, dx\\ &=-\frac {b}{18 c (1+c x)^3}-\frac {b}{24 c (1+c x)^2}-\frac {b}{24 c (1+c x)}-\frac {a+b \tanh ^{-1}(c x)}{3 c (1+c x)^3}-\frac {1}{24} b \int \frac {1}{-1+c^2 x^2} \, dx\\ &=-\frac {b}{18 c (1+c x)^3}-\frac {b}{24 c (1+c x)^2}-\frac {b}{24 c (1+c x)}+\frac {b \tanh ^{-1}(c x)}{24 c}-\frac {a+b \tanh ^{-1}(c x)}{3 c (1+c x)^3}\\ \end {align*}
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Mathematica [A]
time = 0.07, size = 75, normalized size = 0.94 \begin {gather*} -\frac {48 a+2 b \left (10+9 c x+3 c^2 x^2\right )+48 b \tanh ^{-1}(c x)+3 b (1+c x)^3 \log (1-c x)-3 b (1+c x)^3 \log (1+c x)}{144 c (1+c x)^3} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.16, size = 78, normalized size = 0.98
method | result | size |
derivativedivides | \(\frac {-\frac {a}{3 \left (c x +1\right )^{3}}-\frac {b \arctanh \left (c x \right )}{3 \left (c x +1\right )^{3}}-\frac {b}{18 \left (c x +1\right )^{3}}-\frac {b}{24 \left (c x +1\right )^{2}}-\frac {b}{24 \left (c x +1\right )}+\frac {b \ln \left (c x +1\right )}{48}-\frac {b \ln \left (c x -1\right )}{48}}{c}\) | \(78\) |
default | \(\frac {-\frac {a}{3 \left (c x +1\right )^{3}}-\frac {b \arctanh \left (c x \right )}{3 \left (c x +1\right )^{3}}-\frac {b}{18 \left (c x +1\right )^{3}}-\frac {b}{24 \left (c x +1\right )^{2}}-\frac {b}{24 \left (c x +1\right )}+\frac {b \ln \left (c x +1\right )}{48}-\frac {b \ln \left (c x -1\right )}{48}}{c}\) | \(78\) |
risch | \(-\frac {b \ln \left (c x +1\right )}{6 c \left (c x +1\right )^{3}}-\frac {3 \ln \left (c x -1\right ) b \,c^{3} x^{3}-3 \ln \left (-c x -1\right ) b \,c^{3} x^{3}+9 \ln \left (c x -1\right ) b \,c^{2} x^{2}-9 b \,c^{2} \ln \left (-c x -1\right ) x^{2}+6 b \,c^{2} x^{2}+9 \ln \left (c x -1\right ) b c x -9 \ln \left (-c x -1\right ) b c x +18 b c x +3 b \ln \left (c x -1\right )-3 b \ln \left (-c x -1\right )-24 b \ln \left (-c x +1\right )+48 a +20 b}{144 \left (c x +1\right )^{3} c}\) | \(168\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.26, size = 132, normalized size = 1.65 \begin {gather*} -\frac {1}{144} \, {\left (c {\left (\frac {2 \, {\left (3 \, c^{2} x^{2} + 9 \, c x + 10\right )}}{c^{5} x^{3} + 3 \, c^{4} x^{2} + 3 \, c^{3} x + c^{2}} - \frac {3 \, \log \left (c x + 1\right )}{c^{2}} + \frac {3 \, \log \left (c x - 1\right )}{c^{2}}\right )} + \frac {48 \, \operatorname {artanh}\left (c x\right )}{c^{4} x^{3} + 3 \, c^{3} x^{2} + 3 \, c^{2} x + c}\right )} b - \frac {a}{3 \, {\left (c^{4} x^{3} + 3 \, c^{3} x^{2} + 3 \, c^{2} x + c\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.36, size = 91, normalized size = 1.14 \begin {gather*} -\frac {6 \, b c^{2} x^{2} + 18 \, b c x - 3 \, {\left (b c^{3} x^{3} + 3 \, b c^{2} x^{2} + 3 \, b c x - 7 \, b\right )} \log \left (-\frac {c x + 1}{c x - 1}\right ) + 48 \, a + 20 \, b}{144 \, {\left (c^{4} x^{3} + 3 \, c^{3} x^{2} + 3 \, c^{2} x + c\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. 294 vs.
\(2 (65) = 130\).
time = 1.18, size = 294, normalized size = 3.68 \begin {gather*} \begin {cases} - \frac {24 a}{72 c^{4} x^{3} + 216 c^{3} x^{2} + 216 c^{2} x + 72 c} + \frac {3 b c^{3} x^{3} \operatorname {atanh}{\left (c x \right )}}{72 c^{4} x^{3} + 216 c^{3} x^{2} + 216 c^{2} x + 72 c} + \frac {9 b c^{2} x^{2} \operatorname {atanh}{\left (c x \right )}}{72 c^{4} x^{3} + 216 c^{3} x^{2} + 216 c^{2} x + 72 c} - \frac {3 b c^{2} x^{2}}{72 c^{4} x^{3} + 216 c^{3} x^{2} + 216 c^{2} x + 72 c} + \frac {9 b c x \operatorname {atanh}{\left (c x \right )}}{72 c^{4} x^{3} + 216 c^{3} x^{2} + 216 c^{2} x + 72 c} - \frac {9 b c x}{72 c^{4} x^{3} + 216 c^{3} x^{2} + 216 c^{2} x + 72 c} - \frac {21 b \operatorname {atanh}{\left (c x \right )}}{72 c^{4} x^{3} + 216 c^{3} x^{2} + 216 c^{2} x + 72 c} - \frac {10 b}{72 c^{4} x^{3} + 216 c^{3} x^{2} + 216 c^{2} x + 72 c} & \text {for}\: c \neq 0 \\a x & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 161 vs.
\(2 (70) = 140\).
time = 0.41, size = 161, normalized size = 2.01 \begin {gather*} \frac {1}{288} \, c {\left (\frac {6 \, {\left (c x - 1\right )}^{3} {\left (\frac {3 \, {\left (c x + 1\right )}^{2} b}{{\left (c x - 1\right )}^{2}} - \frac {3 \, {\left (c x + 1\right )} b}{c x - 1} + b\right )} \log \left (-\frac {c x + 1}{c x - 1}\right )}{{\left (c x + 1\right )}^{3} c^{2}} + \frac {{\left (c x - 1\right )}^{3} {\left (\frac {36 \, {\left (c x + 1\right )}^{2} a}{{\left (c x - 1\right )}^{2}} - \frac {36 \, {\left (c x + 1\right )} a}{c x - 1} + 12 \, a + \frac {18 \, {\left (c x + 1\right )}^{2} b}{{\left (c x - 1\right )}^{2}} - \frac {9 \, {\left (c x + 1\right )} b}{c x - 1} + 2 \, b\right )}}{{\left (c x + 1\right )}^{3} c^{2}}\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.10, size = 139, normalized size = 1.74 \begin {gather*} \frac {\frac {b\,c^2\,x^3}{8}-\frac {b\,x}{8}-\frac {b\,\mathrm {atanh}\left (c\,x\right )}{3\,c}-\frac {12\,a+5\,b}{36\,c}+\frac {b\,c^3\,x^4}{24}+\frac {c\,x^2\,\left (24\,a+7\,b\right )}{72}+\frac {b\,c\,x^2\,\mathrm {atanh}\left (c\,x\right )}{3}}{-c^5\,x^5-3\,c^4\,x^4-2\,c^3\,x^3+2\,c^2\,x^2+3\,c\,x+1}-\frac {b\,\ln \left (c^2\,x^2-1\right )}{48\,c}+\frac {b\,\ln \left (c\,x+1\right )}{24\,c} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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