Integrand size = 9, antiderivative size = 12 \[ \int \csc ^4(x) \sin (4 x) \, dx=-2 \csc ^2(x)-8 \log (\sin (x)) \]
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Time = 0.02 (sec) , antiderivative size = 12, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {14} \[ \int \csc ^4(x) \sin (4 x) \, dx=-2 \csc ^2(x)-8 \log (\sin (x)) \]
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Rule 14
Rubi steps \begin{align*} \text {integral}& = \text {Subst}\left (\int \frac {4-8 x^2}{x^3} \, dx,x,\sin (x)\right ) \\ & = \text {Subst}\left (\int \left (\frac {4}{x^3}-\frac {8}{x}\right ) \, dx,x,\sin (x)\right ) \\ & = -2 \csc ^2(x)-8 \log (\sin (x)) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 12, normalized size of antiderivative = 1.00 \[ \int \csc ^4(x) \sin (4 x) \, dx=-2 \csc ^2(x)-8 \log (\sin (x)) \]
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Time = 2.12 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.58
method | result | size |
default | \(\frac {2}{\sin \left (x \right )^{2}}-4 \left (\cot ^{2}\left (x \right )\right )-8 \ln \left (\sin \left (x \right )\right )\) | \(19\) |
risch | \(8 i x +\frac {8 \,{\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}-8 \ln \left ({\mathrm e}^{2 i x}-1\right )\) | \(32\) |
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Leaf count of result is larger than twice the leaf count of optimal. 25 vs. \(2 (12) = 24\).
Time = 0.28 (sec) , antiderivative size = 25, normalized size of antiderivative = 2.08 \[ \int \csc ^4(x) \sin (4 x) \, dx=-\frac {2 \, {\left (4 \, {\left (\cos \left (x\right )^{2} - 1\right )} \log \left (\frac {1}{2} \, \sin \left (x\right )\right ) - 1\right )}}{\cos \left (x\right )^{2} - 1} \]
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Time = 2.49 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.17 \[ \int \csc ^4(x) \sin (4 x) \, dx=- 8 \log {\left (\sin {\left (x \right )} \right )} - \frac {2}{\sin ^{2}{\left (x \right )}} \]
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none
Time = 0.19 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.58 \[ \int \csc ^4(x) \sin (4 x) \, dx=-\frac {2}{\sin \left (x\right )^{2}} - 2 \, \log \left (\sin \left (x\right )^{2}\right ) - 4 \, \log \left (\sin \left (x\right )\right ) \]
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none
Time = 0.27 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.08 \[ \int \csc ^4(x) \sin (4 x) \, dx=-\frac {2}{\sin \left (x\right )^{2}} - 8 \, \log \left ({\left | \sin \left (x\right ) \right |}\right ) \]
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Time = 0.37 (sec) , antiderivative size = 35, normalized size of antiderivative = 2.92 \[ \int \csc ^4(x) \sin (4 x) \, dx=8\,\ln \left ({\mathrm {tan}\left (\frac {x}{2}\right )}^2+1\right )-8\,\ln \left (\mathrm {tan}\left (\frac {x}{2}\right )\right )-\frac {1}{2\,{\mathrm {tan}\left (\frac {x}{2}\right )}^2}-\frac {{\mathrm {tan}\left (\frac {x}{2}\right )}^2}{2} \]
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