Optimal. Leaf size=249 \[ -\frac{i \sqrt{-i a-i b x+1} (i a+i b x+1)^{3/2} \left (-22 i a^2-2 (11-10 i a) b x+54 a+29 i\right )}{8 b^4}+\frac{3 \left (8 i a^3-36 a^2-44 i a+17\right ) \sqrt{-i a-i b x+1} \sqrt{i a+i b x+1}}{8 b^4}-\frac{3 \left (-8 a^3-36 i a^2+44 a+17 i\right ) \sinh ^{-1}(a+b x)}{8 b^4}-\frac{9 x^2 \sqrt{-i a-i b x+1} (i a+i b x+1)^{3/2}}{4 b^2}-\frac{2 i x^3 (i a+i b x+1)^{3/2}}{b \sqrt{-i a-i b x+1}} \]
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Rubi [A] time = 0.242333, antiderivative size = 249, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 8, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.5, Rules used = {5095, 97, 153, 147, 50, 53, 619, 215} \[ -\frac{i \sqrt{-i a-i b x+1} (i a+i b x+1)^{3/2} \left (-22 i a^2-2 (11-10 i a) b x+54 a+29 i\right )}{8 b^4}+\frac{3 \left (8 i a^3-36 a^2-44 i a+17\right ) \sqrt{-i a-i b x+1} \sqrt{i a+i b x+1}}{8 b^4}-\frac{3 \left (-8 a^3-36 i a^2+44 a+17 i\right ) \sinh ^{-1}(a+b x)}{8 b^4}-\frac{9 x^2 \sqrt{-i a-i b x+1} (i a+i b x+1)^{3/2}}{4 b^2}-\frac{2 i x^3 (i a+i b x+1)^{3/2}}{b \sqrt{-i a-i b x+1}} \]
Antiderivative was successfully verified.
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Rule 5095
Rule 97
Rule 153
Rule 147
Rule 50
Rule 53
Rule 619
Rule 215
Rubi steps
\begin{align*} \int e^{3 i \tan ^{-1}(a+b x)} x^3 \, dx &=\int \frac{x^3 (1+i a+i b x)^{3/2}}{(1-i a-i b x)^{3/2}} \, dx\\ &=-\frac{2 i x^3 (1+i a+i b x)^{3/2}}{b \sqrt{1-i a-i b x}}+\frac{(2 i) \int \frac{x^2 \sqrt{1+i a+i b x} \left (3 (1+i a)+\frac{9 i b x}{2}\right )}{\sqrt{1-i a-i b x}} \, dx}{b}\\ &=-\frac{2 i x^3 (1+i a+i b x)^{3/2}}{b \sqrt{1-i a-i b x}}-\frac{9 x^2 \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2}}{4 b^2}+\frac{i \int \frac{x \sqrt{1+i a+i b x} \left (-9 i \left (1+a^2\right ) b+\frac{3}{2} (11-10 i a) b^2 x\right )}{\sqrt{1-i a-i b x}} \, dx}{2 b^3}\\ &=-\frac{2 i x^3 (1+i a+i b x)^{3/2}}{b \sqrt{1-i a-i b x}}-\frac{9 x^2 \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2}}{4 b^2}-\frac{i \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2} \left (29 i+54 a-22 i a^2-2 (11-10 i a) b x\right )}{8 b^4}-\frac{\left (3 \left (17 i+44 a-36 i a^2-8 a^3\right )\right ) \int \frac{\sqrt{1+i a+i b x}}{\sqrt{1-i a-i b x}} \, dx}{8 b^3}\\ &=\frac{3 \left (17-44 i a-36 a^2+8 i a^3\right ) \sqrt{1-i a-i b x} \sqrt{1+i a+i b x}}{8 b^4}-\frac{2 i x^3 (1+i a+i b x)^{3/2}}{b \sqrt{1-i a-i b x}}-\frac{9 x^2 \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2}}{4 b^2}-\frac{i \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2} \left (29 i+54 a-22 i a^2-2 (11-10 i a) b x\right )}{8 b^4}-\frac{\left (3 \left (17 i+44 a-36 i a^2-8 a^3\right )\right ) \int \frac{1}{\sqrt{1-i a-i b x} \sqrt{1+i a+i b x}} \, dx}{8 b^3}\\ &=\frac{3 \left (17-44 i a-36 a^2+8 i a^3\right ) \sqrt{1-i a-i b x} \sqrt{1+i a+i b x}}{8 b^4}-\frac{2 i x^3 (1+i a+i b x)^{3/2}}{b \sqrt{1-i a-i b x}}-\frac{9 x^2 \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2}}{4 b^2}-\frac{i \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2} \left (29 i+54 a-22 i a^2-2 (11-10 i a) b x\right )}{8 b^4}-\frac{\left (3 \left (17 i+44 a-36 i a^2-8 a^3\right )\right ) \int \frac{1}{\sqrt{(1-i a) (1+i a)+2 a b x+b^2 x^2}} \, dx}{8 b^3}\\ &=\frac{3 \left (17-44 i a-36 a^2+8 i a^3\right ) \sqrt{1-i a-i b x} \sqrt{1+i a+i b x}}{8 b^4}-\frac{2 i x^3 (1+i a+i b x)^{3/2}}{b \sqrt{1-i a-i b x}}-\frac{9 x^2 \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2}}{4 b^2}-\frac{i \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2} \left (29 i+54 a-22 i a^2-2 (11-10 i a) b x\right )}{8 b^4}-\frac{\left (3 \left (17 i+44 a-36 i a^2-8 a^3\right )\right ) \operatorname{Subst}\left (\int \frac{1}{\sqrt{1+\frac{x^2}{4 b^2}}} \, dx,x,2 a b+2 b^2 x\right )}{16 b^5}\\ &=\frac{3 \left (17-44 i a-36 a^2+8 i a^3\right ) \sqrt{1-i a-i b x} \sqrt{1+i a+i b x}}{8 b^4}-\frac{2 i x^3 (1+i a+i b x)^{3/2}}{b \sqrt{1-i a-i b x}}-\frac{9 x^2 \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2}}{4 b^2}-\frac{i \sqrt{1-i a-i b x} (1+i a+i b x)^{3/2} \left (29 i+54 a-22 i a^2-2 (11-10 i a) b x\right )}{8 b^4}-\frac{3 \left (17 i+44 a-36 i a^2-8 a^3\right ) \sinh ^{-1}(a+b x)}{8 b^4}\\ \end{align*}
Mathematica [A] time = 0.261418, size = 201, normalized size = 0.81 \[ \frac{\sqrt{i a+i b x+1} \left (a^2 (-233+22 i b x)+2 a^4+78 i a^3-i a \left (10 b^2 x^2-54 i b x+237\right )-2 b^4 x^4+6 i b^3 x^3+11 b^2 x^2-29 i b x+80\right )}{8 b^4 \sqrt{-i (a+b x+i)}}+\frac{3 \sqrt [4]{-1} \left (8 a^3+36 i a^2-44 a-17 i\right ) \sqrt{-i b} \sinh ^{-1}\left (\frac{\left (\frac{1}{2}+\frac{i}{2}\right ) \sqrt{b} \sqrt{-i (a+b x+i)}}{\sqrt{-i b}}\right )}{4 b^{9/2}} \]
Warning: Unable to verify antiderivative.
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Maple [B] time = 0.129, size = 711, normalized size = 2.9 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.07708, size = 633, normalized size = 2.54 \begin{align*} \frac{15 i \, a^{5} - 495 \, a^{4} - 1664 i \, a^{3} +{\left (15 i \, a^{4} - 480 \, a^{3} - 1184 i \, a^{2} + 968 \, a + 256 i\right )} b x + 2152 \, a^{2} -{\left (192 \, a^{4} + 1056 i \, a^{3} +{\left (192 \, a^{3} + 864 i \, a^{2} - 1056 \, a - 408 i\right )} b x - 1920 \, a^{2} - 1464 i \, a + 408\right )} \log \left (-b x - a + \sqrt{b^{2} x^{2} + 2 \, a b x + a^{2} + 1}\right ) +{\left (-16 i \, b^{4} x^{4} - 48 \, b^{3} x^{3} +{\left (80 \, a + 88 i\right )} b^{2} x^{2} + 16 i \, a^{4} - 624 \, a^{3} - 8 \,{\left (22 \, a^{2} + 54 i \, a - 29\right )} b x - 1864 i \, a^{2} + 1896 \, a + 640 i\right )} \sqrt{b^{2} x^{2} + 2 \, a b x + a^{2} + 1} + 1224 i \, a - 256}{64 \, b^{5} x +{\left (64 \, a + 64 i\right )} b^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x^{3} \left (i a + i b x + 1\right )^{3}}{\left (a^{2} + 2 a b x + b^{2} x^{2} + 1\right )^{\frac{3}{2}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.18536, size = 446, normalized size = 1.79 \begin{align*} -\frac{1}{8} \, \sqrt{{\left (b x + a\right )}^{2} + 1}{\left ({\left (2 \,{\left (\frac{i x}{b} - \frac{a b^{11} i - 4 \, b^{11}}{b^{13}}\right )} x + \frac{2 \, a^{2} b^{10} i - 20 \, a b^{10} - 19 \, b^{10} i}{b^{13}}\right )} x - \frac{2 \, a^{3} b^{9} i - 44 \, a^{2} b^{9} - 93 \, a b^{9} i + 48 \, b^{9}}{b^{13}}\right )} - \frac{{\left (8 \, a^{3} + 36 \, a^{2} i - 44 \, a - 17 \, 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 + 2 \,{\left (x{\left | b \right |} - \sqrt{{\left (b x + a\right )}^{2} + 1}\right )}^{2} b i + 2 \, a^{2} b i +{\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 |} + 4 \,{\left (x{\left | b \right |} - \sqrt{{\left (b x + a\right )}^{2} + 1}\right )} a i{\left | b \right |} - a b -{\left (x{\left | b \right |} - \sqrt{{\left (b x + a\right )}^{2} + 1}\right )}{\left | b \right |}\right )}{8 \, b^{3}{\left | b \right |}} - \frac{{\left (8 \, a^{3}{\left | b \right |} + 36 \, a^{2} i{\left | b \right |} - 44 \, a{\left | b \right |} - 17 \, i{\left | b \right |}\right )} \log \left (96 \, b^{4}\right )}{4 \, b^{5}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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