Integrand size = 17, antiderivative size = 42 \[ \int \frac {\cos ^3\left (a+b \log \left (c x^n\right )\right )}{x} \, dx=\frac {\sin \left (a+b \log \left (c x^n\right )\right )}{b n}-\frac {\sin ^3\left (a+b \log \left (c x^n\right )\right )}{3 b n} \]
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Time = 0.04 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.059, Rules used = {2713} \[ \int \frac {\cos ^3\left (a+b \log \left (c x^n\right )\right )}{x} \, dx=\frac {\sin \left (a+b \log \left (c x^n\right )\right )}{b n}-\frac {\sin ^3\left (a+b \log \left (c x^n\right )\right )}{3 b n} \]
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Rule 2713
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \cos ^3(a+b x) \, dx,x,\log \left (c x^n\right )\right )}{n} \\ & = -\frac {\text {Subst}\left (\int \left (1-x^2\right ) \, dx,x,-\sin \left (a+b \log \left (c x^n\right )\right )\right )}{b n} \\ & = \frac {\sin \left (a+b \log \left (c x^n\right )\right )}{b n}-\frac {\sin ^3\left (a+b \log \left (c x^n\right )\right )}{3 b n} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 42, normalized size of antiderivative = 1.00 \[ \int \frac {\cos ^3\left (a+b \log \left (c x^n\right )\right )}{x} \, dx=\frac {\sin \left (a+b \log \left (c x^n\right )\right )}{b n}-\frac {\sin ^3\left (a+b \log \left (c x^n\right )\right )}{3 b n} \]
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Time = 4.70 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.83
method | result | size |
derivativedivides | \(\frac {\left (2+{\cos \left (a +b \ln \left (c \,x^{n}\right )\right )}^{2}\right ) \sin \left (a +b \ln \left (c \,x^{n}\right )\right )}{3 n b}\) | \(35\) |
default | \(\frac {\left (2+{\cos \left (a +b \ln \left (c \,x^{n}\right )\right )}^{2}\right ) \sin \left (a +b \ln \left (c \,x^{n}\right )\right )}{3 n b}\) | \(35\) |
parallelrisch | \(\frac {\sin \left (3 b \ln \left (c \,x^{n}\right )+3 a \right )+9 \sin \left (a +b \ln \left (c \,x^{n}\right )\right )}{12 b n}\) | \(37\) |
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Time = 0.24 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.86 \[ \int \frac {\cos ^3\left (a+b \log \left (c x^n\right )\right )}{x} \, dx=\frac {{\left (\cos \left (b n \log \left (x\right ) + b \log \left (c\right ) + a\right )^{2} + 2\right )} \sin \left (b n \log \left (x\right ) + b \log \left (c\right ) + a\right )}{3 \, b n} \]
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Leaf count of result is larger than twice the leaf count of optimal. 71 vs. \(2 (32) = 64\).
Time = 1.27 (sec) , antiderivative size = 71, normalized size of antiderivative = 1.69 \[ \int \frac {\cos ^3\left (a+b \log \left (c x^n\right )\right )}{x} \, dx=\begin {cases} \log {\left (x \right )} \cos ^{3}{\left (a \right )} & \text {for}\: b = 0 \wedge \left (b = 0 \vee n = 0\right ) \\\log {\left (x \right )} \cos ^{3}{\left (a + b \log {\left (c \right )} \right )} & \text {for}\: n = 0 \\\frac {2 \sin ^{3}{\left (a + b \log {\left (c x^{n} \right )} \right )}}{3 b n} + \frac {\sin {\left (a + b \log {\left (c x^{n} \right )} \right )} \cos ^{2}{\left (a + b \log {\left (c x^{n} \right )} \right )}}{b n} & \text {otherwise} \end {cases} \]
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Leaf count of result is larger than twice the leaf count of optimal. 232 vs. \(2 (40) = 80\).
Time = 0.23 (sec) , antiderivative size = 232, normalized size of antiderivative = 5.52 \[ \int \frac {\cos ^3\left (a+b \log \left (c x^n\right )\right )}{x} \, dx=\frac {{\left (\cos \left (3 \, b \log \left (c\right )\right ) \sin \left (6 \, b \log \left (c\right )\right ) - \cos \left (6 \, b \log \left (c\right )\right ) \sin \left (3 \, b \log \left (c\right )\right ) + \sin \left (3 \, b \log \left (c\right )\right )\right )} \cos \left (3 \, b \log \left (x^{n}\right ) + 3 \, a\right ) + 9 \, {\left (\cos \left (3 \, b \log \left (c\right )\right ) \sin \left (4 \, b \log \left (c\right )\right ) - \cos \left (4 \, b \log \left (c\right )\right ) \sin \left (3 \, b \log \left (c\right )\right ) + \cos \left (2 \, b \log \left (c\right )\right ) \sin \left (3 \, b \log \left (c\right )\right ) - \cos \left (3 \, b \log \left (c\right )\right ) \sin \left (2 \, b \log \left (c\right )\right )\right )} \cos \left (b \log \left (x^{n}\right ) + a\right ) + {\left (\cos \left (6 \, b \log \left (c\right )\right ) \cos \left (3 \, b \log \left (c\right )\right ) + \sin \left (6 \, b \log \left (c\right )\right ) \sin \left (3 \, b \log \left (c\right )\right ) + \cos \left (3 \, b \log \left (c\right )\right )\right )} \sin \left (3 \, b \log \left (x^{n}\right ) + 3 \, a\right ) + 9 \, {\left (\cos \left (4 \, b \log \left (c\right )\right ) \cos \left (3 \, b \log \left (c\right )\right ) + \cos \left (3 \, b \log \left (c\right )\right ) \cos \left (2 \, b \log \left (c\right )\right ) + \sin \left (4 \, b \log \left (c\right )\right ) \sin \left (3 \, b \log \left (c\right )\right ) + \sin \left (3 \, b \log \left (c\right )\right ) \sin \left (2 \, b \log \left (c\right )\right )\right )} \sin \left (b \log \left (x^{n}\right ) + a\right )}{24 \, b n} \]
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\[ \int \frac {\cos ^3\left (a+b \log \left (c x^n\right )\right )}{x} \, dx=\int { \frac {\cos \left (b \log \left (c x^{n}\right ) + a\right )^{3}}{x} \,d x } \]
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Time = 27.89 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.88 \[ \int \frac {\cos ^3\left (a+b \log \left (c x^n\right )\right )}{x} \, dx=\frac {3\,\sin \left (a+b\,\ln \left (c\,x^n\right )\right )-{\sin \left (a+b\,\ln \left (c\,x^n\right )\right )}^3}{3\,b\,n} \]
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