Integrand size = 16, antiderivative size = 49 \[ \int \frac {\csc ^2(x)}{(a \cos (x)+b \sin (x))^2} \, dx=-\frac {\cot (x)}{a^2}-\frac {2 b \log (\tan (x))}{a^3}+\frac {2 b \log (a+b \tan (x))}{a^3}-\frac {\frac {1}{b}+\frac {b}{a^2}}{a+b \tan (x)} \]
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Time = 0.09 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {3166, 908} \[ \int \frac {\csc ^2(x)}{(a \cos (x)+b \sin (x))^2} \, dx=-\frac {2 b \log (\tan (x))}{a^3}+\frac {2 b \log (a+b \tan (x))}{a^3}-\frac {\frac {b}{a^2}+\frac {1}{b}}{a+b \tan (x)}-\frac {\cot (x)}{a^2} \]
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Rule 908
Rule 3166
Rubi steps \begin{align*} \text {integral}& = \text {Subst}\left (\int \frac {1+x^2}{x^2 (a+b x)^2} \, dx,x,\tan (x)\right ) \\ & = \text {Subst}\left (\int \left (\frac {1}{a^2 x^2}-\frac {2 b}{a^3 x}+\frac {a^2+b^2}{a^2 (a+b x)^2}+\frac {2 b^2}{a^3 (a+b x)}\right ) \, dx,x,\tan (x)\right ) \\ & = -\frac {\cot (x)}{a^2}-\frac {2 b \log (\tan (x))}{a^3}+\frac {2 b \log (a+b \tan (x))}{a^3}-\frac {\frac {1}{b}+\frac {b}{a^2}}{a+b \tan (x)} \\ \end{align*}
Time = 2.43 (sec) , antiderivative size = 76, normalized size of antiderivative = 1.55 \[ \int \frac {\csc ^2(x)}{(a \cos (x)+b \sin (x))^2} \, dx=\frac {a^2+b^2-a^2 \cot ^2(x)-2 b^2 \log (\sin (x))-a b \cot (x) (1+2 \log (\sin (x))-2 \log (a \cos (x)+b \sin (x)))+2 b^2 \log (a \cos (x)+b \sin (x))}{a^3 (b+a \cot (x))} \]
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Time = 0.64 (sec) , antiderivative size = 56, normalized size of antiderivative = 1.14
method | result | size |
default | \(-\frac {a^{2}+b^{2}}{a^{2} b \left (a +b \tan \left (x \right )\right )}+\frac {2 b \ln \left (a +b \tan \left (x \right )\right )}{a^{3}}-\frac {1}{a^{2} \tan \left (x \right )}-\frac {2 b \ln \left (\tan \left (x \right )\right )}{a^{3}}\) | \(56\) |
risch | \(-\frac {4 \left (b \,{\mathrm e}^{2 i x}-b +i a \right )}{\left ({\mathrm e}^{2 i x}-1\right ) \left (-i b \,{\mathrm e}^{2 i x}+a \,{\mathrm e}^{2 i x}+i b +a \right ) a^{2}}+\frac {2 b \ln \left ({\mathrm e}^{2 i x}-\frac {i b +a}{i b -a}\right )}{a^{3}}-\frac {2 b \ln \left ({\mathrm e}^{2 i x}-1\right )}{a^{3}}\) | \(100\) |
norman | \(\frac {\frac {1}{2 a}+\frac {\tan \left (\frac {x}{2}\right )^{4}}{2 a}-\frac {\left (3 a^{2}+4 b^{2}\right ) \tan \left (\frac {x}{2}\right )^{2}}{a^{3}}}{\tan \left (\frac {x}{2}\right ) \left (\tan \left (\frac {x}{2}\right )^{2} a -2 b \tan \left (\frac {x}{2}\right )-a \right )}-\frac {2 b \ln \left (\tan \left (\frac {x}{2}\right )\right )}{a^{3}}+\frac {2 b \ln \left (\tan \left (\frac {x}{2}\right )^{2} a -2 b \tan \left (\frac {x}{2}\right )-a \right )}{a^{3}}\) | \(106\) |
parallelrisch | \(\frac {-2 \cot \left (x \right ) \cos \left (x \right ) a^{2}+2 a b \cos \left (x \right ) \ln \left (\frac {-2 a \cos \left (x \right )-2 b \sin \left (x \right )}{\cos \left (x \right )+1}\right )-2 \ln \left (\csc \left (x \right )-\cot \left (x \right )\right ) a b \cos \left (x \right )+2 \sin \left (x \right ) b^{2} \ln \left (\frac {-2 a \cos \left (x \right )-2 b \sin \left (x \right )}{\cos \left (x \right )+1}\right )-2 \sin \left (x \right ) \ln \left (\csc \left (x \right )-\cot \left (x \right )\right ) b^{2}+\csc \left (x \right ) a^{2}+2 \sin \left (x \right ) b^{2}}{\left (a \cos \left (x \right )+b \sin \left (x \right )\right ) a^{3}}\) | \(119\) |
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Leaf count of result is larger than twice the leaf count of optimal. 134 vs. \(2 (49) = 98\).
Time = 0.27 (sec) , antiderivative size = 134, normalized size of antiderivative = 2.73 \[ \int \frac {\csc ^2(x)}{(a \cos (x)+b \sin (x))^2} \, dx=\frac {2 \, a^{2} \cos \left (x\right )^{2} + 2 \, a b \cos \left (x\right ) \sin \left (x\right ) - a^{2} + {\left (b^{2} \cos \left (x\right )^{2} - a b \cos \left (x\right ) \sin \left (x\right ) - b^{2}\right )} \log \left (2 \, a b \cos \left (x\right ) \sin \left (x\right ) + {\left (a^{2} - b^{2}\right )} \cos \left (x\right )^{2} + b^{2}\right ) - {\left (b^{2} \cos \left (x\right )^{2} - a b \cos \left (x\right ) \sin \left (x\right ) - b^{2}\right )} \log \left (-\frac {1}{4} \, \cos \left (x\right )^{2} + \frac {1}{4}\right )}{a^{3} b \cos \left (x\right )^{2} - a^{4} \cos \left (x\right ) \sin \left (x\right ) - a^{3} b} \]
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\[ \int \frac {\csc ^2(x)}{(a \cos (x)+b \sin (x))^2} \, dx=\int \frac {\csc ^{2}{\left (x \right )}}{\left (a \cos {\left (x \right )} + b \sin {\left (x \right )}\right )^{2}}\, dx \]
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Time = 0.22 (sec) , antiderivative size = 62, normalized size of antiderivative = 1.27 \[ \int \frac {\csc ^2(x)}{(a \cos (x)+b \sin (x))^2} \, dx=-\frac {a b + {\left (a^{2} + 2 \, b^{2}\right )} \tan \left (x\right )}{a^{2} b^{2} \tan \left (x\right )^{2} + a^{3} b \tan \left (x\right )} + \frac {2 \, b \log \left (b \tan \left (x\right ) + a\right )}{a^{3}} - \frac {2 \, b \log \left (\tan \left (x\right )\right )}{a^{3}} \]
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Time = 0.28 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.29 \[ \int \frac {\csc ^2(x)}{(a \cos (x)+b \sin (x))^2} \, dx=\frac {2 \, b \log \left ({\left | b \tan \left (x\right ) + a \right |}\right )}{a^{3}} - \frac {2 \, b \log \left ({\left | \tan \left (x\right ) \right |}\right )}{a^{3}} - \frac {a^{2} \tan \left (x\right ) + 2 \, b^{2} \tan \left (x\right ) + a b}{{\left (b \tan \left (x\right )^{2} + a \tan \left (x\right )\right )} a^{2} b} \]
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Time = 21.71 (sec) , antiderivative size = 114, normalized size of antiderivative = 2.33 \[ \int \frac {\csc ^2(x)}{(a \cos (x)+b \sin (x))^2} \, dx=\frac {\mathrm {tan}\left (\frac {x}{2}\right )}{2\,a^2}-\frac {a+2\,b\,\mathrm {tan}\left (\frac {x}{2}\right )-\frac {{\mathrm {tan}\left (\frac {x}{2}\right )}^2\,\left (5\,a^2+4\,b^2\right )}{a}}{-2\,a^3\,{\mathrm {tan}\left (\frac {x}{2}\right )}^3+2\,a^3\,\mathrm {tan}\left (\frac {x}{2}\right )+4\,b\,a^2\,{\mathrm {tan}\left (\frac {x}{2}\right )}^2}+\frac {2\,b\,\ln \left (-a\,{\mathrm {tan}\left (\frac {x}{2}\right )}^2+2\,b\,\mathrm {tan}\left (\frac {x}{2}\right )+a\right )}{a^3}-\frac {2\,b\,\ln \left (\mathrm {tan}\left (\frac {x}{2}\right )\right )}{a^3} \]
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