Integrand size = 18, antiderivative size = 30 \[ \int \csc ^2(a+b x) \csc (2 a+2 b x) \, dx=-\frac {\cot ^2(a+b x)}{4 b}+\frac {\log (\tan (a+b x))}{2 b} \]
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Time = 0.05 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {4373, 2700, 14} \[ \int \csc ^2(a+b x) \csc (2 a+2 b x) \, dx=\frac {\log (\tan (a+b x))}{2 b}-\frac {\cot ^2(a+b x)}{4 b} \]
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Rule 14
Rule 2700
Rule 4373
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \int \csc ^3(a+b x) \sec (a+b x) \, dx \\ & = \frac {\text {Subst}\left (\int \frac {1+x^2}{x^3} \, dx,x,\tan (a+b x)\right )}{2 b} \\ & = \frac {\text {Subst}\left (\int \left (\frac {1}{x^3}+\frac {1}{x}\right ) \, dx,x,\tan (a+b x)\right )}{2 b} \\ & = -\frac {\cot ^2(a+b x)}{4 b}+\frac {\log (\tan (a+b x))}{2 b} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 44, normalized size of antiderivative = 1.47 \[ \int \csc ^2(a+b x) \csc (2 a+2 b x) \, dx=-\frac {\csc ^2(a+b x)}{4 b}-\frac {\log (\cos (a+b x))}{2 b}+\frac {\log (\sin (a+b x))}{2 b} \]
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Time = 0.46 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.80
method | result | size |
default | \(\frac {-\frac {1}{2 \sin \left (x b +a \right )^{2}}+\ln \left (\tan \left (x b +a \right )\right )}{2 b}\) | \(24\) |
risch | \(\frac {{\mathrm e}^{2 i \left (x b +a \right )}}{b \left ({\mathrm e}^{2 i \left (x b +a \right )}-1\right )^{2}}-\frac {\ln \left ({\mathrm e}^{2 i \left (x b +a \right )}+1\right )}{2 b}+\frac {\ln \left ({\mathrm e}^{2 i \left (x b +a \right )}-1\right )}{2 b}\) | \(62\) |
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Leaf count of result is larger than twice the leaf count of optimal. 65 vs. \(2 (26) = 52\).
Time = 0.26 (sec) , antiderivative size = 65, normalized size of antiderivative = 2.17 \[ \int \csc ^2(a+b x) \csc (2 a+2 b x) \, dx=-\frac {{\left (\cos \left (b x + a\right )^{2} - 1\right )} \log \left (\cos \left (b x + a\right )^{2}\right ) - {\left (\cos \left (b x + a\right )^{2} - 1\right )} \log \left (-\frac {1}{4} \, \cos \left (b x + a\right )^{2} + \frac {1}{4}\right ) - 1}{4 \, {\left (b \cos \left (b x + a\right )^{2} - b\right )}} \]
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\[ \int \csc ^2(a+b x) \csc (2 a+2 b x) \, dx=\int \csc ^{2}{\left (a + b x \right )} \csc {\left (2 a + 2 b x \right )}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 656 vs. \(2 (26) = 52\).
Time = 0.24 (sec) , antiderivative size = 656, normalized size of antiderivative = 21.87 \[ \int \csc ^2(a+b x) \csc (2 a+2 b x) \, dx=\frac {4 \, \cos \left (4 \, b x + 4 \, a\right ) \cos \left (2 \, b x + 2 \, a\right ) - 8 \, \cos \left (2 \, b x + 2 \, a\right )^{2} + {\left (2 \, {\left (2 \, \cos \left (2 \, b x + 2 \, a\right ) - 1\right )} \cos \left (4 \, b x + 4 \, a\right ) - \cos \left (4 \, b x + 4 \, a\right )^{2} - 4 \, \cos \left (2 \, b x + 2 \, a\right )^{2} - \sin \left (4 \, b x + 4 \, a\right )^{2} + 4 \, \sin \left (4 \, b x + 4 \, a\right ) \sin \left (2 \, b x + 2 \, a\right ) - 4 \, \sin \left (2 \, b x + 2 \, a\right )^{2} + 4 \, \cos \left (2 \, b x + 2 \, a\right ) - 1\right )} \log \left (\cos \left (2 \, b x\right )^{2} + 2 \, \cos \left (2 \, b x\right ) \cos \left (2 \, a\right ) + \cos \left (2 \, a\right )^{2} + \sin \left (2 \, b x\right )^{2} - 2 \, \sin \left (2 \, b x\right ) \sin \left (2 \, a\right ) + \sin \left (2 \, a\right )^{2}\right ) - {\left (2 \, {\left (2 \, \cos \left (2 \, b x + 2 \, a\right ) - 1\right )} \cos \left (4 \, b x + 4 \, a\right ) - \cos \left (4 \, b x + 4 \, a\right )^{2} - 4 \, \cos \left (2 \, b x + 2 \, a\right )^{2} - \sin \left (4 \, b x + 4 \, a\right )^{2} + 4 \, \sin \left (4 \, b x + 4 \, a\right ) \sin \left (2 \, b x + 2 \, a\right ) - 4 \, \sin \left (2 \, b x + 2 \, a\right )^{2} + 4 \, \cos \left (2 \, b x + 2 \, a\right ) - 1\right )} \log \left (\cos \left (b x\right )^{2} + 2 \, \cos \left (b x\right ) \cos \left (a\right ) + \cos \left (a\right )^{2} + \sin \left (b x\right )^{2} - 2 \, \sin \left (b x\right ) \sin \left (a\right ) + \sin \left (a\right )^{2}\right ) - {\left (2 \, {\left (2 \, \cos \left (2 \, b x + 2 \, a\right ) - 1\right )} \cos \left (4 \, b x + 4 \, a\right ) - \cos \left (4 \, b x + 4 \, a\right )^{2} - 4 \, \cos \left (2 \, b x + 2 \, a\right )^{2} - \sin \left (4 \, b x + 4 \, a\right )^{2} + 4 \, \sin \left (4 \, b x + 4 \, a\right ) \sin \left (2 \, b x + 2 \, a\right ) - 4 \, \sin \left (2 \, b x + 2 \, a\right )^{2} + 4 \, \cos \left (2 \, b x + 2 \, a\right ) - 1\right )} \log \left (\cos \left (b x\right )^{2} - 2 \, \cos \left (b x\right ) \cos \left (a\right ) + \cos \left (a\right )^{2} + \sin \left (b x\right )^{2} + 2 \, \sin \left (b x\right ) \sin \left (a\right ) + \sin \left (a\right )^{2}\right ) + 4 \, \sin \left (4 \, b x + 4 \, a\right ) \sin \left (2 \, b x + 2 \, a\right ) - 8 \, \sin \left (2 \, b x + 2 \, a\right )^{2} + 4 \, \cos \left (2 \, b x + 2 \, a\right )}{4 \, {\left (b \cos \left (4 \, b x + 4 \, a\right )^{2} + 4 \, b \cos \left (2 \, b x + 2 \, a\right )^{2} + b \sin \left (4 \, b x + 4 \, a\right )^{2} - 4 \, b \sin \left (4 \, b x + 4 \, a\right ) \sin \left (2 \, b x + 2 \, a\right ) + 4 \, b \sin \left (2 \, b x + 2 \, a\right )^{2} - 2 \, {\left (2 \, b \cos \left (2 \, b x + 2 \, a\right ) - b\right )} \cos \left (4 \, b x + 4 \, a\right ) - 4 \, b \cos \left (2 \, b x + 2 \, a\right ) + b\right )}} \]
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Time = 0.26 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.23 \[ \int \csc ^2(a+b x) \csc (2 a+2 b x) \, dx=-\frac {\frac {1}{\sin \left (b x + a\right )^{2}} + \log \left (-\sin \left (b x + a\right )^{2} + 1\right ) - 2 \, \log \left ({\left | \sin \left (b x + a\right ) \right |}\right )}{4 \, b} \]
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Time = 19.51 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.20 \[ \int \csc ^2(a+b x) \csc (2 a+2 b x) \, dx=-\frac {\frac {\ln \left (\cos \left (a+b\,x\right )\right )}{2}-\frac {\ln \left ({\sin \left (a+b\,x\right )}^2\right )}{4}+\frac {1}{4\,{\sin \left (a+b\,x\right )}^2}}{b} \]
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