Optimal. Leaf size=94 \[ -\frac {i 2^{-\frac {5}{2}+n} \cos ^5(c+d x) \, _2F_1\left (-\frac {5}{2},\frac {7}{2}-n;-\frac {3}{2};\frac {1}{2} (1-i \tan (c+d x))\right ) (1+i \tan (c+d x))^{\frac {1}{2}-n} (a+i a \tan (c+d x))^{2+n}}{5 a^2 d} \]
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Rubi [A]
time = 0.14, antiderivative size = 94, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 4, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {3586, 3604, 72,
71} \begin {gather*} -\frac {i 2^{n-\frac {5}{2}} \cos ^5(c+d x) (1+i \tan (c+d x))^{\frac {1}{2}-n} (a+i a \tan (c+d x))^{n+2} \, _2F_1\left (-\frac {5}{2},\frac {7}{2}-n;-\frac {3}{2};\frac {1}{2} (1-i \tan (c+d x))\right )}{5 a^2 d} \end {gather*}
Antiderivative was successfully verified.
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Rule 71
Rule 72
Rule 3586
Rule 3604
Rubi steps
\begin {align*} \int \cos ^5(c+d x) (a+i a \tan (c+d x))^n \, dx &=\left (\cos ^5(c+d x) (a-i a \tan (c+d x))^{5/2} (a+i a \tan (c+d x))^{5/2}\right ) \int \frac {(a+i a \tan (c+d x))^{-\frac {5}{2}+n}}{(a-i a \tan (c+d x))^{5/2}} \, dx\\ &=\frac {\left (a^2 \cos ^5(c+d x) (a-i a \tan (c+d x))^{5/2} (a+i a \tan (c+d x))^{5/2}\right ) \text {Subst}\left (\int \frac {(a+i a x)^{-\frac {7}{2}+n}}{(a-i a x)^{7/2}} \, dx,x,\tan (c+d x)\right )}{d}\\ &=\frac {\left (2^{-\frac {7}{2}+n} \cos ^5(c+d x) (a-i a \tan (c+d x))^{5/2} (a+i a \tan (c+d x))^{2+n} \left (\frac {a+i a \tan (c+d x)}{a}\right )^{\frac {1}{2}-n}\right ) \text {Subst}\left (\int \frac {\left (\frac {1}{2}+\frac {i x}{2}\right )^{-\frac {7}{2}+n}}{(a-i a x)^{7/2}} \, dx,x,\tan (c+d x)\right )}{a d}\\ &=-\frac {i 2^{-\frac {5}{2}+n} \cos ^5(c+d x) \, _2F_1\left (-\frac {5}{2},\frac {7}{2}-n;-\frac {3}{2};\frac {1}{2} (1-i \tan (c+d x))\right ) (1+i \tan (c+d x))^{\frac {1}{2}-n} (a+i a \tan (c+d x))^{2+n}}{5 a^2 d}\\ \end {align*}
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Mathematica [A]
time = 10.80, size = 149, normalized size = 1.59 \begin {gather*} -\frac {i 2^{-5+n} e^{-5 i (c+d x)} \left (e^{i d x}\right )^n \left (\frac {e^{i (c+d x)}}{1+e^{2 i (c+d x)}}\right )^n \left (1+e^{2 i (c+d x)}\right )^6 \, _2F_1\left (1,\frac {7}{2};-\frac {3}{2}+n;-e^{2 i (c+d x)}\right ) \sec ^{-n}(c+d x) (\cos (d x)+i \sin (d x))^{-n} (a+i a \tan (c+d x))^n}{d (-5+2 n)} \end {gather*}
Warning: Unable to verify antiderivative.
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Maple [F]
time = 0.99, size = 0, normalized size = 0.00 \[\int \left (\cos ^{5}\left (d x +c \right )\right ) \left (a +i a \tan \left (d x +c \right )\right )^{n}\, dx\]
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 [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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Sympy [F(-1)] Timed out
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \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 [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int {\cos \left (c+d\,x\right )}^5\,{\left (a+a\,\mathrm {tan}\left (c+d\,x\right )\,1{}\mathrm {i}\right )}^n \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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