Integrand size = 29, antiderivative size = 25 \[ \int \frac {c-i c \tan (e+f x)}{(a+i a \tan (e+f x))^3} \, dx=\frac {i c}{3 f (a+i a \tan (e+f x))^3} \]
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Time = 0.09 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.103, Rules used = {3603, 3568, 32} \[ \int \frac {c-i c \tan (e+f x)}{(a+i a \tan (e+f x))^3} \, dx=\frac {i c}{3 f (a+i a \tan (e+f x))^3} \]
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Rule 32
Rule 3568
Rule 3603
Rubi steps \begin{align*} \text {integral}& = (a c) \int \frac {\sec ^2(e+f x)}{(a+i a \tan (e+f x))^4} \, dx \\ & = -\frac {(i c) \text {Subst}\left (\int \frac {1}{(a+x)^4} \, dx,x,i a \tan (e+f x)\right )}{f} \\ & = \frac {i c}{3 f (a+i a \tan (e+f x))^3} \\ \end{align*}
Time = 0.51 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.92 \[ \int \frac {c-i c \tan (e+f x)}{(a+i a \tan (e+f x))^3} \, dx=-\frac {c}{3 a^3 f (-i+\tan (e+f x))^3} \]
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Time = 0.27 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.84
method | result | size |
derivativedivides | \(-\frac {c}{3 f \,a^{3} \left (\tan \left (f x +e \right )-i\right )^{3}}\) | \(21\) |
default | \(-\frac {c}{3 f \,a^{3} \left (\tan \left (f x +e \right )-i\right )^{3}}\) | \(21\) |
risch | \(\frac {i c \,{\mathrm e}^{-2 i \left (f x +e \right )}}{8 a^{3} f}+\frac {i c \,{\mathrm e}^{-4 i \left (f x +e \right )}}{8 a^{3} f}+\frac {i c \,{\mathrm e}^{-6 i \left (f x +e \right )}}{24 a^{3} f}\) | \(59\) |
norman | \(\frac {\frac {c \tan \left (f x +e \right )}{a f}-\frac {i c \left (\tan ^{2}\left (f x +e \right )\right )}{a f}+\frac {i c}{3 a f}-\frac {c \left (\tan ^{3}\left (f x +e \right )\right )}{3 a f}}{a^{2} \left (1+\tan ^{2}\left (f x +e \right )\right )^{3}}\) | \(77\) |
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 45 vs. \(2 (19) = 38\).
Time = 0.24 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.80 \[ \int \frac {c-i c \tan (e+f x)}{(a+i a \tan (e+f x))^3} \, dx=\frac {{\left (3 i \, c e^{\left (4 i \, f x + 4 i \, e\right )} + 3 i \, c e^{\left (2 i \, f x + 2 i \, e\right )} + i \, c\right )} e^{\left (-6 i \, f x - 6 i \, e\right )}}{24 \, a^{3} f} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 141 vs. \(2 (19) = 38\).
Time = 0.20 (sec) , antiderivative size = 141, normalized size of antiderivative = 5.64 \[ \int \frac {c-i c \tan (e+f x)}{(a+i a \tan (e+f x))^3} \, dx=\begin {cases} \frac {\left (192 i a^{6} c f^{2} e^{10 i e} e^{- 2 i f x} + 192 i a^{6} c f^{2} e^{8 i e} e^{- 4 i f x} + 64 i a^{6} c f^{2} e^{6 i e} e^{- 6 i f x}\right ) e^{- 12 i e}}{1536 a^{9} f^{3}} & \text {for}\: a^{9} f^{3} e^{12 i e} \neq 0 \\\frac {x \left (c e^{4 i e} + 2 c e^{2 i e} + c\right ) e^{- 6 i e}}{4 a^{3}} & \text {otherwise} \end {cases} \]
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Exception generated. \[ \int \frac {c-i c \tan (e+f x)}{(a+i a \tan (e+f x))^3} \, dx=\text {Exception raised: RuntimeError} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 90 vs. \(2 (19) = 38\).
Time = 0.54 (sec) , antiderivative size = 90, normalized size of antiderivative = 3.60 \[ \int \frac {c-i c \tan (e+f x)}{(a+i a \tan (e+f x))^3} \, dx=-\frac {2 \, {\left (3 \, c \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{5} - 6 i \, c \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{4} - 10 \, c \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{3} + 6 i \, c \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )^{2} + 3 \, c \tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right )\right )}}{3 \, a^{3} f {\left (\tan \left (\frac {1}{2} \, f x + \frac {1}{2} \, e\right ) - i\right )}^{6}} \]
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Time = 6.04 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.80 \[ \int \frac {c-i c \tan (e+f x)}{(a+i a \tan (e+f x))^3} \, dx=-\frac {c}{3\,a^3\,f\,{\left (\mathrm {tan}\left (e+f\,x\right )-\mathrm {i}\right )}^3} \]
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