Optimal. Leaf size=90 \[ -\frac {i a^6}{6 d (a-i a \tan (c+d x))^3}-\frac {i a^5}{8 d (a-i a \tan (c+d x))^2}-\frac {i a^4}{8 d (a-i a \tan (c+d x))}+\frac {a^3 x}{8} \]
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Rubi [A] time = 0.07, antiderivative size = 90, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {3487, 44, 206} \[ -\frac {i a^6}{6 d (a-i a \tan (c+d x))^3}-\frac {i a^5}{8 d (a-i a \tan (c+d x))^2}-\frac {i a^4}{8 d (a-i a \tan (c+d x))}+\frac {a^3 x}{8} \]
Antiderivative was successfully verified.
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Rule 44
Rule 206
Rule 3487
Rubi steps
\begin {align*} \int \cos ^6(c+d x) (a+i a \tan (c+d x))^3 \, dx &=-\frac {\left (i a^7\right ) \operatorname {Subst}\left (\int \frac {1}{(a-x)^4 (a+x)} \, dx,x,i a \tan (c+d x)\right )}{d}\\ &=-\frac {\left (i a^7\right ) \operatorname {Subst}\left (\int \left (\frac {1}{2 a (a-x)^4}+\frac {1}{4 a^2 (a-x)^3}+\frac {1}{8 a^3 (a-x)^2}+\frac {1}{8 a^3 \left (a^2-x^2\right )}\right ) \, dx,x,i a \tan (c+d x)\right )}{d}\\ &=-\frac {i a^6}{6 d (a-i a \tan (c+d x))^3}-\frac {i a^5}{8 d (a-i a \tan (c+d x))^2}-\frac {i a^4}{8 d (a-i a \tan (c+d x))}-\frac {\left (i a^4\right ) \operatorname {Subst}\left (\int \frac {1}{a^2-x^2} \, dx,x,i a \tan (c+d x)\right )}{8 d}\\ &=\frac {a^3 x}{8}-\frac {i a^6}{6 d (a-i a \tan (c+d x))^3}-\frac {i a^5}{8 d (a-i a \tan (c+d x))^2}-\frac {i a^4}{8 d (a-i a \tan (c+d x))}\\ \end {align*}
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Mathematica [A] time = 0.69, size = 109, normalized size = 1.21 \[ \frac {a^3 (-9 \sin (c+d x)-12 i d x \sin (3 (c+d x))+2 \sin (3 (c+d x))-27 i \cos (c+d x)+2 (6 d x-i) \cos (3 (c+d x))) (\cos (3 (c+2 d x))+i \sin (3 (c+2 d x)))}{96 d (\cos (d x)+i \sin (d x))^3} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.55, size = 55, normalized size = 0.61 \[ \frac {12 \, a^{3} d x - 2 i \, a^{3} e^{\left (6 i \, d x + 6 i \, c\right )} - 9 i \, a^{3} e^{\left (4 i \, d x + 4 i \, c\right )} - 18 i \, a^{3} e^{\left (2 i \, d x + 2 i \, c\right )}}{96 \, d} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [B] time = 2.17, size = 457, normalized size = 5.08 \[ \frac {48 \, a^{3} d x e^{\left (8 i \, d x + 4 i \, c\right )} + 192 \, a^{3} d x e^{\left (6 i \, d x + 2 i \, c\right )} + 192 \, a^{3} d x e^{\left (2 i \, d x - 2 i \, c\right )} + 288 \, a^{3} d x e^{\left (4 i \, d x\right )} + 48 \, a^{3} d x e^{\left (-4 i \, c\right )} - 12 i \, a^{3} e^{\left (8 i \, d x + 4 i \, c\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) - 48 i \, a^{3} e^{\left (6 i \, d x + 2 i \, c\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) - 48 i \, a^{3} e^{\left (2 i \, d x - 2 i \, c\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) - 72 i \, a^{3} e^{\left (4 i \, d x\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) - 12 i \, a^{3} e^{\left (-4 i \, c\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) + 12 i \, a^{3} e^{\left (8 i \, d x + 4 i \, c\right )} \log \left (e^{\left (2 i \, d x\right )} + e^{\left (-2 i \, c\right )}\right ) + 48 i \, a^{3} e^{\left (6 i \, d x + 2 i \, c\right )} \log \left (e^{\left (2 i \, d x\right )} + e^{\left (-2 i \, c\right )}\right ) + 48 i \, a^{3} e^{\left (2 i \, d x - 2 i \, c\right )} \log \left (e^{\left (2 i \, d x\right )} + e^{\left (-2 i \, c\right )}\right ) + 72 i \, a^{3} e^{\left (4 i \, d x\right )} \log \left (e^{\left (2 i \, d x\right )} + e^{\left (-2 i \, c\right )}\right ) + 12 i \, a^{3} e^{\left (-4 i \, c\right )} \log \left (e^{\left (2 i \, d x\right )} + e^{\left (-2 i \, c\right )}\right ) - 8 i \, a^{3} e^{\left (14 i \, d x + 10 i \, c\right )} - 68 i \, a^{3} e^{\left (12 i \, d x + 8 i \, c\right )} - 264 i \, a^{3} e^{\left (10 i \, d x + 6 i \, c\right )} - 536 i \, a^{3} e^{\left (8 i \, d x + 4 i \, c\right )} - 584 i \, a^{3} e^{\left (6 i \, d x + 2 i \, c\right )} - 72 i \, a^{3} e^{\left (2 i \, d x - 2 i \, c\right )} - 324 i \, a^{3} e^{\left (4 i \, d x\right )}}{384 \, {\left (d e^{\left (8 i \, d x + 4 i \, c\right )} + 4 \, d e^{\left (6 i \, d x + 2 i \, c\right )} + 4 \, d e^{\left (2 i \, d x - 2 i \, c\right )} + 6 \, d e^{\left (4 i \, d x\right )} + d e^{\left (-4 i \, c\right )}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.52, size = 156, normalized size = 1.73 \[ \frac {-i a^{3} \left (-\frac {\left (\sin ^{2}\left (d x +c \right )\right ) \left (\cos ^{4}\left (d x +c \right )\right )}{6}-\frac {\left (\cos ^{4}\left (d x +c \right )\right )}{12}\right )-3 a^{3} \left (-\frac {\sin \left (d x +c \right ) \left (\cos ^{5}\left (d x +c \right )\right )}{6}+\frac {\left (\cos ^{3}\left (d x +c \right )+\frac {3 \cos \left (d x +c \right )}{2}\right ) \sin \left (d x +c \right )}{24}+\frac {d x}{16}+\frac {c}{16}\right )-\frac {i a^{3} \left (\cos ^{6}\left (d x +c \right )\right )}{2}+a^{3} \left (\frac {\left (\cos ^{5}\left (d x +c \right )+\frac {5 \left (\cos ^{3}\left (d x +c \right )\right )}{4}+\frac {15 \cos \left (d x +c \right )}{8}\right ) \sin \left (d x +c \right )}{6}+\frac {5 d x}{16}+\frac {5 c}{16}\right )}{d} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.64, size = 105, normalized size = 1.17 \[ \frac {6 \, {\left (d x + c\right )} a^{3} + \frac {6 \, a^{3} \tan \left (d x + c\right )^{5} + 16 \, a^{3} \tan \left (d x + c\right )^{3} + 12 i \, a^{3} \tan \left (d x + c\right )^{2} + 42 \, a^{3} \tan \left (d x + c\right ) - 20 i \, a^{3}}{\tan \left (d x + c\right )^{6} + 3 \, \tan \left (d x + c\right )^{4} + 3 \, \tan \left (d x + c\right )^{2} + 1}}{48 \, d} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 3.36, size = 77, normalized size = 0.86 \[ \frac {a^3\,x}{8}-\frac {\frac {a^3\,{\mathrm {tan}\left (c+d\,x\right )}^2}{8}+\frac {a^3\,\mathrm {tan}\left (c+d\,x\right )\,3{}\mathrm {i}}{8}-\frac {5\,a^3}{12}}{d\,\left (-{\mathrm {tan}\left (c+d\,x\right )}^3-{\mathrm {tan}\left (c+d\,x\right )}^2\,3{}\mathrm {i}+3\,\mathrm {tan}\left (c+d\,x\right )+1{}\mathrm {i}\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.40, size = 133, normalized size = 1.48 \[ \frac {a^{3} x}{8} + \begin {cases} - \frac {512 i a^{3} d^{2} e^{6 i c} e^{6 i d x} + 2304 i a^{3} d^{2} e^{4 i c} e^{4 i d x} + 4608 i a^{3} d^{2} e^{2 i c} e^{2 i d x}}{24576 d^{3}} & \text {for}\: 24576 d^{3} \neq 0 \\x \left (\frac {a^{3} e^{6 i c}}{8} + \frac {3 a^{3} e^{4 i c}}{8} + \frac {3 a^{3} e^{2 i c}}{8}\right ) & \text {otherwise} \end {cases} \]
Verification of antiderivative is not currently implemented for this CAS.
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