Optimal. Leaf size=21 \[ \frac {1}{3} \log (\sin (x))-\frac {1}{6} \log \left (3-4 \sin ^2(x)\right ) \]
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Rubi [A]
time = 0.02, antiderivative size = 21, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 5, integrand size = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.714, Rules used = {4441, 272, 36,
31, 29} \begin {gather*} \frac {1}{3} \log (\sin (x))-\frac {1}{6} \log \left (3-4 \sin ^2(x)\right ) \end {gather*}
Antiderivative was successfully verified.
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Rule 29
Rule 31
Rule 36
Rule 272
Rule 4441
Rubi steps
\begin {align*} \int \cos (x) \csc (3 x) \, dx &=\text {Subst}\left (\int \frac {1}{x \left (3-4 x^2\right )} \, dx,x,\sin (x)\right )\\ &=\frac {1}{2} \text {Subst}\left (\int \frac {1}{(3-4 x) x} \, dx,x,\sin ^2(x)\right )\\ &=\frac {1}{6} \text {Subst}\left (\int \frac {1}{x} \, dx,x,\sin ^2(x)\right )+\frac {2}{3} \text {Subst}\left (\int \frac {1}{3-4 x} \, dx,x,\sin ^2(x)\right )\\ &=\frac {1}{3} \log (\sin (x))-\frac {1}{6} \log \left (3-4 \sin ^2(x)\right )\\ \end {align*}
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Mathematica [A]
time = 0.01, size = 21, normalized size = 1.00 \begin {gather*} \frac {1}{3} \log (\sin (x))-\frac {1}{6} \log \left (3-4 \sin ^2(x)\right ) \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.08, size = 34, normalized size = 1.62
method | result | size |
risch | \(\frac {\ln \left ({\mathrm e}^{2 i x}-1\right )}{3}-\frac {\ln \left ({\mathrm e}^{4 i x}+{\mathrm e}^{2 i x}+1\right )}{6}\) | \(27\) |
default | \(\frac {\ln \left (\cos \left (x \right )-1\right )}{6}-\frac {\ln \left (1+2 \cos \left (x \right )\right )}{6}-\frac {\ln \left (2 \cos \left (x \right )-1\right )}{6}+\frac {\ln \left (1+\cos \left (x \right )\right )}{6}\) | \(34\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 129 vs.
\(2 (17) = 34\).
time = 1.77, size = 129, normalized size = 6.14 \begin {gather*} -\frac {1}{12} \, \log \left (2 \, {\left (\cos \left (x\right ) + 1\right )} \cos \left (2 \, x\right ) + \cos \left (2 \, x\right )^{2} + \cos \left (x\right )^{2} + \sin \left (2 \, x\right )^{2} + 2 \, \sin \left (2 \, x\right ) \sin \left (x\right ) + \sin \left (x\right )^{2} + 2 \, \cos \left (x\right ) + 1\right ) - \frac {1}{12} \, \log \left (-2 \, {\left (\cos \left (x\right ) - 1\right )} \cos \left (2 \, x\right ) + \cos \left (2 \, x\right )^{2} + \cos \left (x\right )^{2} + \sin \left (2 \, x\right )^{2} - 2 \, \sin \left (2 \, x\right ) \sin \left (x\right ) + \sin \left (x\right )^{2} - 2 \, \cos \left (x\right ) + 1\right ) + \frac {1}{6} \, \log \left (\cos \left (x\right )^{2} + \sin \left (x\right )^{2} + 2 \, \cos \left (x\right ) + 1\right ) + \frac {1}{6} \, \log \left (\cos \left (x\right )^{2} + \sin \left (x\right )^{2} - 2 \, \cos \left (x\right ) + 1\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 1.32, size = 19, normalized size = 0.90 \begin {gather*} -\frac {1}{6} \, \log \left (4 \, \cos \left (x\right )^{2} - 1\right ) + \frac {1}{3} \, \log \left (\frac {1}{2} \, \sin \left (x\right )\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.54, size = 17, normalized size = 0.81 \begin {gather*} - \frac {\log {\left (4 \sin ^{2}{\left (x \right )} - 3 \right )}}{6} + \frac {\log {\left (\sin {\left (x \right )} \right )}}{3} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.87, size = 24, normalized size = 1.14 \begin {gather*} \frac {1}{6} \, \log \left (-\cos \left (x\right )^{2} + 1\right ) - \frac {1}{6} \, \log \left ({\left | 4 \, \cos \left (x\right )^{2} - 1 \right |}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.26, size = 17, normalized size = 0.81 \begin {gather*} \frac {\ln \left (\sin \left (x\right )\right )}{3}-\frac {\ln \left (\frac {1}{4}-{\cos \left (x\right )}^2\right )}{6} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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