Integrand size = 22, antiderivative size = 46 \[ \int \sec ^4(c+d x) (a+i a \tan (c+d x)) \, dx=\frac {i a \sec ^4(c+d x)}{4 d}+\frac {a \tan (c+d x)}{d}+\frac {a \tan ^3(c+d x)}{3 d} \]
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Time = 0.05 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {3567, 3852} \[ \int \sec ^4(c+d x) (a+i a \tan (c+d x)) \, dx=\frac {a \tan ^3(c+d x)}{3 d}+\frac {a \tan (c+d x)}{d}+\frac {i a \sec ^4(c+d x)}{4 d} \]
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Rule 3567
Rule 3852
Rubi steps \begin{align*} \text {integral}& = \frac {i a \sec ^4(c+d x)}{4 d}+a \int \sec ^4(c+d x) \, dx \\ & = \frac {i a \sec ^4(c+d x)}{4 d}-\frac {a \text {Subst}\left (\int \left (1+x^2\right ) \, dx,x,-\tan (c+d x)\right )}{d} \\ & = \frac {i a \sec ^4(c+d x)}{4 d}+\frac {a \tan (c+d x)}{d}+\frac {a \tan ^3(c+d x)}{3 d} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 43, normalized size of antiderivative = 0.93 \[ \int \sec ^4(c+d x) (a+i a \tan (c+d x)) \, dx=\frac {i a \sec ^4(c+d x)}{4 d}+\frac {a \left (\tan (c+d x)+\frac {1}{3} \tan ^3(c+d x)\right )}{d} \]
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Time = 3.46 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.98
method | result | size |
derivativedivides | \(\frac {a \left (\tan \left (d x +c \right )+\frac {i \left (\tan ^{4}\left (d x +c \right )\right )}{4}+\frac {\left (\tan ^{3}\left (d x +c \right )\right )}{3}+\frac {i \left (\tan ^{2}\left (d x +c \right )\right )}{2}\right )}{d}\) | \(45\) |
default | \(\frac {a \left (\tan \left (d x +c \right )+\frac {i \left (\tan ^{4}\left (d x +c \right )\right )}{4}+\frac {\left (\tan ^{3}\left (d x +c \right )\right )}{3}+\frac {i \left (\tan ^{2}\left (d x +c \right )\right )}{2}\right )}{d}\) | \(45\) |
risch | \(\frac {4 i a \left (6 \,{\mathrm e}^{4 i \left (d x +c \right )}+4 \,{\mathrm e}^{2 i \left (d x +c \right )}+1\right )}{3 d \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right )^{4}}\) | \(45\) |
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 81 vs. \(2 (40) = 80\).
Time = 0.23 (sec) , antiderivative size = 81, normalized size of antiderivative = 1.76 \[ \int \sec ^4(c+d x) (a+i a \tan (c+d x)) \, dx=-\frac {4 \, {\left (-6 i \, a e^{\left (4 i \, d x + 4 i \, c\right )} - 4 i \, a e^{\left (2 i \, d x + 2 i \, c\right )} - i \, a\right )}}{3 \, {\left (d e^{\left (8 i \, d x + 8 i \, c\right )} + 4 \, d e^{\left (6 i \, d x + 6 i \, c\right )} + 6 \, d e^{\left (4 i \, d x + 4 i \, c\right )} + 4 \, d e^{\left (2 i \, d x + 2 i \, c\right )} + d\right )}} \]
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Time = 1.11 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.04 \[ \int \sec ^4(c+d x) (a+i a \tan (c+d x)) \, dx=\begin {cases} \frac {a \left (\frac {\tan ^{3}{\left (c + d x \right )}}{3} + \tan {\left (c + d x \right )}\right ) + \frac {i a \sec ^{4}{\left (c + d x \right )}}{4}}{d} & \text {for}\: d \neq 0 \\x \left (i a \tan {\left (c \right )} + a\right ) \sec ^{4}{\left (c \right )} & \text {otherwise} \end {cases} \]
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none
Time = 0.24 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.04 \[ \int \sec ^4(c+d x) (a+i a \tan (c+d x)) \, dx=\frac {3 i \, a \tan \left (d x + c\right )^{4} + 4 \, a \tan \left (d x + c\right )^{3} + 6 i \, a \tan \left (d x + c\right )^{2} + 12 \, a \tan \left (d x + c\right )}{12 \, d} \]
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none
Time = 0.41 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.04 \[ \int \sec ^4(c+d x) (a+i a \tan (c+d x)) \, dx=-\frac {-3 i \, a \tan \left (d x + c\right )^{4} - 4 \, a \tan \left (d x + c\right )^{3} - 6 i \, a \tan \left (d x + c\right )^{2} - 12 \, a \tan \left (d x + c\right )}{12 \, d} \]
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Time = 4.00 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.04 \[ \int \sec ^4(c+d x) (a+i a \tan (c+d x)) \, dx=\frac {\frac {1{}\mathrm {i}\,a\,{\mathrm {tan}\left (c+d\,x\right )}^4}{4}+\frac {a\,{\mathrm {tan}\left (c+d\,x\right )}^3}{3}+\frac {1{}\mathrm {i}\,a\,{\mathrm {tan}\left (c+d\,x\right )}^2}{2}+a\,\mathrm {tan}\left (c+d\,x\right )}{d} \]
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