Optimal. Leaf size=163 \[ -\frac {(1+i a) (1-i a-i b x)^{5/2}}{b^2 \sqrt {1+i a+i b x}}-\frac {3 (3+2 i a) \sqrt {1-i a-i b x} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3+2 i a) (1-i a-i b x)^{3/2} \sqrt {1+i a+i b x}}{2 b^2}-\frac {3 (3 i-2 a) \sinh ^{-1}(a+b x)}{2 b^2} \]
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Rubi [A]
time = 0.08, antiderivative size = 163, normalized size of antiderivative = 1.00, number of steps
used = 7, number of rules used = 6, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.429, Rules used = {5203, 79, 52,
55, 633, 221} \begin {gather*} -\frac {(1+i a) (-i a-i b x+1)^{5/2}}{b^2 \sqrt {i a+i b x+1}}-\frac {(3+2 i a) \sqrt {i a+i b x+1} (-i a-i b x+1)^{3/2}}{2 b^2}-\frac {3 (3+2 i a) \sqrt {i a+i b x+1} \sqrt {-i a-i b x+1}}{2 b^2}-\frac {3 (-2 a+3 i) \sinh ^{-1}(a+b x)}{2 b^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 52
Rule 55
Rule 79
Rule 221
Rule 633
Rule 5203
Rubi steps
\begin {align*} \int e^{-3 i \tan ^{-1}(a+b x)} x \, dx &=\int \frac {x (1-i a-i b x)^{3/2}}{(1+i a+i b x)^{3/2}} \, dx\\ &=-\frac {(1+i a) (1-i a-i b x)^{5/2}}{b^2 \sqrt {1+i a+i b x}}-\frac {(3 i-2 a) \int \frac {(1-i a-i b x)^{3/2}}{\sqrt {1+i a+i b x}} \, dx}{b}\\ &=-\frac {(1+i a) (1-i a-i b x)^{5/2}}{b^2 \sqrt {1+i a+i b x}}-\frac {(3+2 i a) (1-i a-i b x)^{3/2} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3 (3 i-2 a)) \int \frac {\sqrt {1-i a-i b x}}{\sqrt {1+i a+i b x}} \, dx}{2 b}\\ &=-\frac {(1+i a) (1-i a-i b x)^{5/2}}{b^2 \sqrt {1+i a+i b x}}-\frac {3 (3+2 i a) \sqrt {1-i a-i b x} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3+2 i a) (1-i a-i b x)^{3/2} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3 (3 i-2 a)) \int \frac {1}{\sqrt {1-i a-i b x} \sqrt {1+i a+i b x}} \, dx}{2 b}\\ &=-\frac {(1+i a) (1-i a-i b x)^{5/2}}{b^2 \sqrt {1+i a+i b x}}-\frac {3 (3+2 i a) \sqrt {1-i a-i b x} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3+2 i a) (1-i a-i b x)^{3/2} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3 (3 i-2 a)) \int \frac {1}{\sqrt {(1-i a) (1+i a)+2 a b x+b^2 x^2}} \, dx}{2 b}\\ &=-\frac {(1+i a) (1-i a-i b x)^{5/2}}{b^2 \sqrt {1+i a+i b x}}-\frac {3 (3+2 i a) \sqrt {1-i a-i b x} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3+2 i a) (1-i a-i b x)^{3/2} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3 (3 i-2 a)) \text {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^2}{4 b^2}}} \, dx,x,2 a b+2 b^2 x\right )}{4 b^3}\\ &=-\frac {(1+i a) (1-i a-i b x)^{5/2}}{b^2 \sqrt {1+i a+i b x}}-\frac {3 (3+2 i a) \sqrt {1-i a-i b x} \sqrt {1+i a+i b x}}{2 b^2}-\frac {(3+2 i a) (1-i a-i b x)^{3/2} \sqrt {1+i a+i b x}}{2 b^2}-\frac {3 (3 i-2 a) \sinh ^{-1}(a+b x)}{2 b^2}\\ \end {align*}
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Mathematica [A]
time = 0.23, size = 157, normalized size = 0.96 \begin {gather*} \frac {i \left (14 i-a^3+9 b x+6 i b^2 x^2+b^3 x^3+a^2 (14 i-b x)+a \left (-1+20 i b x+b^2 x^2\right )\right )}{2 b^2 \sqrt {1+a^2+2 a b x+b^2 x^2}}+\frac {3 \sqrt [4]{-1} (-3 i+2 a) \sqrt {-i b} \sinh ^{-1}\left (\frac {\left (\frac {1}{2}+\frac {i}{2}\right ) \sqrt {b} \sqrt {-i (i+a+b x)}}{\sqrt {-i b}}\right )}{b^{5/2}} \end {gather*}
Warning: Unable to verify antiderivative.
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Maple [B] Both result and optimal contain complex but leaf count of result is larger than twice
the leaf count of optimal. 594 vs. \(2 (129 ) = 258\).
time = 0.16, size = 595, normalized size = 3.65
method | result | size |
risch | \(-\frac {i \left (-b x +a -6 i\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}{2 b^{2}}-\frac {9 i \ln \left (\frac {b^{2} x +a b}{\sqrt {b^{2}}}+\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\right )}{2 b \sqrt {b^{2}}}+\frac {3 a \ln \left (\frac {b^{2} x +a b}{\sqrt {b^{2}}}+\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\right )}{b \sqrt {b^{2}}}-\frac {4 \sqrt {\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )}\, a}{b^{3} \left (x -\frac {i}{b}+\frac {a}{b}\right )}+\frac {4 i \sqrt {\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )}}{b^{3} \left (x -\frac {i}{b}+\frac {a}{b}\right )}\) | \(249\) |
default | \(\frac {i \left (-\frac {i \left (\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )\right )^{\frac {5}{2}}}{b \left (x -\frac {i-a}{b}\right )^{2}}+3 i b \left (\frac {\left (\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )\right )^{\frac {3}{2}}}{3}+i b \left (\frac {\left (2 \left (x -\frac {i-a}{b}\right ) b^{2}+2 i b \right ) \sqrt {\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )}}{4 b^{2}}+\frac {\ln \left (\frac {i b +\left (x -\frac {i-a}{b}\right ) b^{2}}{\sqrt {b^{2}}}+\sqrt {\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )}\right )}{2 \sqrt {b^{2}}}\right )\right )\right )}{b^{3}}+\frac {i \left (i-a \right ) \left (\frac {i \left (\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )\right )^{\frac {5}{2}}}{b \left (x -\frac {i-a}{b}\right )^{3}}-2 i b \left (-\frac {i \left (\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )\right )^{\frac {5}{2}}}{b \left (x -\frac {i-a}{b}\right )^{2}}+3 i b \left (\frac {\left (\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )\right )^{\frac {3}{2}}}{3}+i b \left (\frac {\left (2 \left (x -\frac {i-a}{b}\right ) b^{2}+2 i b \right ) \sqrt {\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )}}{4 b^{2}}+\frac {\ln \left (\frac {i b +\left (x -\frac {i-a}{b}\right ) b^{2}}{\sqrt {b^{2}}}+\sqrt {\left (x -\frac {i-a}{b}\right )^{2} b^{2}+2 i b \left (x -\frac {i-a}{b}\right )}\right )}{2 \sqrt {b^{2}}}\right )\right )\right )\right )}{b^{4}}\) | \(595\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] Both result and optimal contain complex but leaf count of result is larger than
twice the leaf count of optimal. 293 vs. \(2 (113) = 226\).
time = 0.47, size = 293, normalized size = 1.80 \begin {gather*} -\frac {i \, {\left (b^{2} x^{2} + 2 \, a b x + a^{2} + 1\right )}^{\frac {3}{2}} a}{b^{4} x^{2} + 2 \, a b^{3} x + a^{2} b^{2} - 2 i \, b^{3} x - 2 i \, a b^{2} - b^{2}} - \frac {{\left (b^{2} x^{2} + 2 \, a b x + a^{2} + 1\right )}^{\frac {3}{2}}}{b^{4} x^{2} + 2 \, a b^{3} x + a^{2} b^{2} - 2 i \, b^{3} x - 2 i \, a b^{2} - b^{2}} - \frac {{\left (b^{2} x^{2} + 2 \, a b x + a^{2} + 1\right )}^{\frac {3}{2}}}{2 i \, b^{3} x + 2 i \, a b^{2} + 2 \, b^{2}} - \frac {6 i \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} a}{i \, b^{3} x + i \, a b^{2} + b^{2}} + \frac {3 \, a \operatorname {arsinh}\left (b x + a\right )}{b^{2}} - \frac {6 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}}{i \, b^{3} x + i \, a b^{2} + b^{2}} - \frac {9 i \, \operatorname {arsinh}\left (b x + a\right )}{2 \, b^{2}} - \frac {3 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}}{2 \, b^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 1.90, size = 136, normalized size = 0.83 \begin {gather*} \frac {-3 i \, a^{3} + {\left (-3 i \, a^{2} - 44 \, a + 32 i\right )} b x - 47 \, a^{2} - 12 \, {\left ({\left (2 \, a - 3 i\right )} b x + 2 \, a^{2} - 5 i \, a - 3\right )} \log \left (-b x - a + \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}\right ) - 4 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} {\left (-i \, b^{2} x^{2} + i \, a^{2} + 5 \, b x + 15 \, a - 14 i\right )} + 76 i \, a + 32}{8 \, {\left (b^{3} x + {\left (a - i\right )} b^{2}\right )}} \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*} i \left (\int \frac {x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}{a^{3} + 3 a^{2} b x - 3 i a^{2} + 3 a b^{2} x^{2} - 6 i a b x - 3 a + b^{3} x^{3} - 3 i b^{2} x^{2} - 3 b x + i}\, dx + \int \frac {a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}{a^{3} + 3 a^{2} b x - 3 i a^{2} + 3 a b^{2} x^{2} - 6 i a b x - 3 a + b^{3} x^{3} - 3 i b^{2} x^{2} - 3 b x + i}\, dx + \int \frac {b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}{a^{3} + 3 a^{2} b x - 3 i a^{2} + 3 a b^{2} x^{2} - 6 i a b x - 3 a + b^{3} x^{3} - 3 i b^{2} x^{2} - 3 b x + i}\, dx + \int \frac {2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}{a^{3} + 3 a^{2} b x - 3 i a^{2} + 3 a b^{2} x^{2} - 6 i a b x - 3 a + b^{3} x^{3} - 3 i b^{2} x^{2} - 3 b x + i}\, dx\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.46, size = 210, normalized size = 1.29 \begin {gather*} -\frac {1}{2} \, \sqrt {{\left (b x + a\right )}^{2} + 1} {\left (-\frac {i \, x}{b} - \frac {-i \, a b^{2} - 6 \, b^{2}}{b^{4}}\right )} - \frac {{\left (2 \, a - 3 i\right )} \log \left (3 \, {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )}^{2} a b + a^{3} b + {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )}^{3} {\left | b \right |} + 3 \, {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )} a^{2} {\left | b \right |} - 2 i \, {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )}^{2} b - 2 i \, a^{2} b + 4 \, {\left (-i \, x {\left | b \right |} + i \, \sqrt {{\left (b x + a\right )}^{2} + 1}\right )} a {\left | b \right |} - a b - {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )} {\left | b \right |}\right )}{2 \, b {\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 {x\,{\left ({\left (a+b\,x\right )}^2+1\right )}^{3/2}}{{\left (1+a\,1{}\mathrm {i}+b\,x\,1{}\mathrm {i}\right )}^3} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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