Optimal. Leaf size=34 \[ 2 a^2 x+\frac {a^2 \tanh ^{-1}(\sin (c+d x))}{d}+\frac {a^2 \sin (c+d x)}{d} \]
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Rubi [A]
time = 0.04, antiderivative size = 34, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 4, integrand size = 19, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.210, Rules used = {3873, 8, 4130,
3855} \begin {gather*} \frac {a^2 \sin (c+d x)}{d}+\frac {a^2 \tanh ^{-1}(\sin (c+d x))}{d}+2 a^2 x \end {gather*}
Antiderivative was successfully verified.
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Rule 8
Rule 3855
Rule 3873
Rule 4130
Rubi steps
\begin {align*} \int \cos (c+d x) (a+a \sec (c+d x))^2 \, dx &=\left (2 a^2\right ) \int 1 \, dx+\int \cos (c+d x) \left (a^2+a^2 \sec ^2(c+d x)\right ) \, dx\\ &=2 a^2 x+\frac {a^2 \sin (c+d x)}{d}+a^2 \int \sec (c+d x) \, dx\\ &=2 a^2 x+\frac {a^2 \tanh ^{-1}(\sin (c+d x))}{d}+\frac {a^2 \sin (c+d x)}{d}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 47, normalized size = 1.38 \begin {gather*} 2 a^2 x+\frac {a^2 \tanh ^{-1}(\sin (c+d x))}{d}+\frac {a^2 \cos (d x) \sin (c)}{d}+\frac {a^2 \cos (c) \sin (d x)}{d} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.07, size = 44, normalized size = 1.29
method | result | size |
derivativedivides | \(\frac {a^{2} \ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )+2 a^{2} \left (d x +c \right )+a^{2} \sin \left (d x +c \right )}{d}\) | \(44\) |
default | \(\frac {a^{2} \ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )+2 a^{2} \left (d x +c \right )+a^{2} \sin \left (d x +c \right )}{d}\) | \(44\) |
risch | \(2 a^{2} x -\frac {i a^{2} {\mathrm e}^{i \left (d x +c \right )}}{2 d}+\frac {i a^{2} {\mathrm e}^{-i \left (d x +c \right )}}{2 d}+\frac {a^{2} \ln \left ({\mathrm e}^{i \left (d x +c \right )}+i\right )}{d}-\frac {a^{2} \ln \left ({\mathrm e}^{i \left (d x +c \right )}-i\right )}{d}\) | \(85\) |
norman | \(\frac {-2 a^{2} x -\frac {2 a^{2} \tan \left (\frac {d x}{2}+\frac {c}{2}\right )}{d}+\frac {2 a^{2} \left (\tan ^{3}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{d}+2 a^{2} x \left (\tan ^{4}\left (\frac {d x}{2}+\frac {c}{2}\right )\right )}{\left (1+\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )\right ) \left (\tan ^{2}\left (\frac {d x}{2}+\frac {c}{2}\right )-1\right )}+\frac {a^{2} \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )+1\right )}{d}-\frac {a^{2} \ln \left (\tan \left (\frac {d x}{2}+\frac {c}{2}\right )-1\right )}{d}\) | \(132\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.29, size = 52, normalized size = 1.53 \begin {gather*} \frac {4 \, {\left (d x + c\right )} a^{2} + a^{2} {\left (\log \left (\sin \left (d x + c\right ) + 1\right ) - \log \left (\sin \left (d x + c\right ) - 1\right )\right )} + 2 \, a^{2} \sin \left (d x + c\right )}{2 \, d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 2.81, size = 53, normalized size = 1.56 \begin {gather*} \frac {4 \, a^{2} d x + a^{2} \log \left (\sin \left (d x + c\right ) + 1\right ) - a^{2} \log \left (-\sin \left (d x + c\right ) + 1\right ) + 2 \, a^{2} \sin \left (d x + c\right )}{2 \, d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} a^{2} \left (\int 2 \cos {\left (c + d x \right )} \sec {\left (c + d x \right )}\, dx + \int \cos {\left (c + d x \right )} \sec ^{2}{\left (c + d x \right )}\, dx + \int \cos {\left (c + d x \right )}\, dx\right ) \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. 79 vs.
\(2 (34) = 68\).
time = 0.44, size = 79, normalized size = 2.32 \begin {gather*} \frac {2 \, {\left (d x + c\right )} a^{2} + a^{2} \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) + 1 \right |}\right ) - a^{2} \log \left ({\left | \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right ) - 1 \right |}\right ) + \frac {2 \, a^{2} \tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )}{\tan \left (\frac {1}{2} \, d x + \frac {1}{2} \, c\right )^{2} + 1}}{d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.70, size = 33, normalized size = 0.97 \begin {gather*} 2\,a^2\,x+\frac {a^2\,\left (2\,\mathrm {atanh}\left (\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )\right )+\sin \left (c+d\,x\right )\right )}{d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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