Optimal. Leaf size=58 \[ x-\frac {\tan (c+d x)}{d}+\frac {\tan ^3(c+d x)}{3 d}-\frac {\tan ^5(c+d x)}{5 d}+\frac {\tan ^7(c+d x)}{7 d} \]
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Rubi [A]
time = 0.03, antiderivative size = 58, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 2, integrand size = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {3554, 8}
\begin {gather*} \frac {\tan ^7(c+d x)}{7 d}-\frac {\tan ^5(c+d x)}{5 d}+\frac {\tan ^3(c+d x)}{3 d}-\frac {\tan (c+d x)}{d}+x \end {gather*}
Antiderivative was successfully verified.
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Rule 8
Rule 3554
Rubi steps
\begin {align*} \int \tan ^8(c+d x) \, dx &=\frac {\tan ^7(c+d x)}{7 d}-\int \tan ^6(c+d x) \, dx\\ &=-\frac {\tan ^5(c+d x)}{5 d}+\frac {\tan ^7(c+d x)}{7 d}+\int \tan ^4(c+d x) \, dx\\ &=\frac {\tan ^3(c+d x)}{3 d}-\frac {\tan ^5(c+d x)}{5 d}+\frac {\tan ^7(c+d x)}{7 d}-\int \tan ^2(c+d x) \, dx\\ &=-\frac {\tan (c+d x)}{d}+\frac {\tan ^3(c+d x)}{3 d}-\frac {\tan ^5(c+d x)}{5 d}+\frac {\tan ^7(c+d x)}{7 d}+\int 1 \, dx\\ &=x-\frac {\tan (c+d x)}{d}+\frac {\tan ^3(c+d x)}{3 d}-\frac {\tan ^5(c+d x)}{5 d}+\frac {\tan ^7(c+d x)}{7 d}\\ \end {align*}
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Mathematica [A]
time = 0.01, size = 68, normalized size = 1.17 \begin {gather*} \frac {\text {ArcTan}(\tan (c+d x))}{d}-\frac {\tan (c+d x)}{d}+\frac {\tan ^3(c+d x)}{3 d}-\frac {\tan ^5(c+d x)}{5 d}+\frac {\tan ^7(c+d x)}{7 d} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.03, size = 51, normalized size = 0.88
method | result | size |
derivativedivides | \(\frac {\frac {\left (\tan ^{7}\left (d x +c \right )\right )}{7}-\frac {\left (\tan ^{5}\left (d x +c \right )\right )}{5}+\frac {\left (\tan ^{3}\left (d x +c \right )\right )}{3}-\tan \left (d x +c \right )+\arctan \left (\tan \left (d x +c \right )\right )}{d}\) | \(51\) |
default | \(\frac {\frac {\left (\tan ^{7}\left (d x +c \right )\right )}{7}-\frac {\left (\tan ^{5}\left (d x +c \right )\right )}{5}+\frac {\left (\tan ^{3}\left (d x +c \right )\right )}{3}-\tan \left (d x +c \right )+\arctan \left (\tan \left (d x +c \right )\right )}{d}\) | \(51\) |
norman | \(x -\frac {\tan \left (d x +c \right )}{d}+\frac {\tan ^{3}\left (d x +c \right )}{3 d}-\frac {\tan ^{5}\left (d x +c \right )}{5 d}+\frac {\tan ^{7}\left (d x +c \right )}{7 d}\) | \(53\) |
risch | \(x -\frac {8 i \left (105 \,{\mathrm e}^{12 i \left (d x +c \right )}+315 \,{\mathrm e}^{10 i \left (d x +c \right )}+770 \,{\mathrm e}^{8 i \left (d x +c \right )}+770 \,{\mathrm e}^{6 i \left (d x +c \right )}+609 \,{\mathrm e}^{4 i \left (d x +c \right )}+203 \,{\mathrm e}^{2 i \left (d x +c \right )}+44\right )}{105 d \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right )^{7}}\) | \(90\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.49, size = 51, normalized size = 0.88 \begin {gather*} \frac {15 \, \tan \left (d x + c\right )^{7} - 21 \, \tan \left (d x + c\right )^{5} + 35 \, \tan \left (d x + c\right )^{3} + 105 \, d x + 105 \, c - 105 \, \tan \left (d x + c\right )}{105 \, d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.38, size = 48, normalized size = 0.83 \begin {gather*} \frac {15 \, \tan \left (d x + c\right )^{7} - 21 \, \tan \left (d x + c\right )^{5} + 35 \, \tan \left (d x + c\right )^{3} + 105 \, d x - 105 \, \tan \left (d x + c\right )}{105 \, d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.21, size = 51, normalized size = 0.88 \begin {gather*} \begin {cases} x + \frac {\tan ^{7}{\left (c + d x \right )}}{7 d} - \frac {\tan ^{5}{\left (c + d x \right )}}{5 d} + \frac {\tan ^{3}{\left (c + d x \right )}}{3 d} - \frac {\tan {\left (c + d x \right )}}{d} & \text {for}\: d \neq 0 \\x \tan ^{8}{\left (c \right )} & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 1441 vs.
\(2 (52) = 104\).
time = 5.13, size = 1441, normalized size = 24.84 \begin {gather*} \text {Too large to display} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 2.52, size = 44, normalized size = 0.76 \begin {gather*} x-\frac {-\frac {{\mathrm {tan}\left (c+d\,x\right )}^7}{7}+\frac {{\mathrm {tan}\left (c+d\,x\right )}^5}{5}-\frac {{\mathrm {tan}\left (c+d\,x\right )}^3}{3}+\mathrm {tan}\left (c+d\,x\right )}{d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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