Optimal. Leaf size=28 \[ \frac{\tanh ^{-1}(\sin (a+b x))}{2 b}-\frac{\csc (a+b x)}{2 b} \]
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Rubi [A] time = 0.0413485, antiderivative size = 28, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {4288, 2621, 321, 207} \[ \frac{\tanh ^{-1}(\sin (a+b x))}{2 b}-\frac{\csc (a+b x)}{2 b} \]
Antiderivative was successfully verified.
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Rule 4288
Rule 2621
Rule 321
Rule 207
Rubi steps
\begin{align*} \int \csc (a+b x) \csc (2 a+2 b x) \, dx &=\frac{1}{2} \int \csc ^2(a+b x) \sec (a+b x) \, dx\\ &=-\frac{\operatorname{Subst}\left (\int \frac{x^2}{-1+x^2} \, dx,x,\csc (a+b x)\right )}{2 b}\\ &=-\frac{\csc (a+b x)}{2 b}-\frac{\operatorname{Subst}\left (\int \frac{1}{-1+x^2} \, dx,x,\csc (a+b x)\right )}{2 b}\\ &=\frac{\tanh ^{-1}(\sin (a+b x))}{2 b}-\frac{\csc (a+b x)}{2 b}\\ \end{align*}
Mathematica [C] time = 0.0168705, size = 29, normalized size = 1.04 \[ -\frac{\csc (a+b x) \text{Hypergeometric2F1}\left (-\frac{1}{2},1,\frac{1}{2},\sin ^2(a+b x)\right )}{2 b} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.03, size = 34, normalized size = 1.2 \begin{align*} -{\frac{1}{2\,b\sin \left ( bx+a \right ) }}+{\frac{\ln \left ( \sec \left ( bx+a \right ) +\tan \left ( bx+a \right ) \right ) }{2\,b}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] time = 1.80033, size = 315, normalized size = 11.25 \begin{align*} -\frac{{\left (\cos \left (2 \, b x + 2 \, a\right )^{2} + \sin \left (2 \, b x + 2 \, a\right )^{2} - 2 \, \cos \left (2 \, b x + 2 \, a\right ) + 1\right )} \log \left (\frac{\cos \left (b x + 2 \, a\right )^{2} + \cos \left (a\right )^{2} - 2 \, \cos \left (a\right ) \sin \left (b x + 2 \, a\right ) + \sin \left (b x + 2 \, a\right )^{2} + 2 \, \cos \left (b x + 2 \, a\right ) \sin \left (a\right ) + \sin \left (a\right )^{2}}{\cos \left (b x + 2 \, a\right )^{2} + \cos \left (a\right )^{2} + 2 \, \cos \left (a\right ) \sin \left (b x + 2 \, a\right ) + \sin \left (b x + 2 \, a\right )^{2} - 2 \, \cos \left (b x + 2 \, a\right ) \sin \left (a\right ) + \sin \left (a\right )^{2}}\right ) + 4 \, \cos \left (b x + a\right ) \sin \left (2 \, b x + 2 \, a\right ) - 4 \, \cos \left (2 \, b x + 2 \, a\right ) \sin \left (b x + a\right ) + 4 \, \sin \left (b x + a\right )}{4 \,{\left (b \cos \left (2 \, b x + 2 \, a\right )^{2} + b \sin \left (2 \, b x + 2 \, a\right )^{2} - 2 \, b \cos \left (2 \, b x + 2 \, a\right ) + b\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 0.490565, size = 136, normalized size = 4.86 \begin{align*} \frac{\log \left (\sin \left (b x + a\right ) + 1\right ) \sin \left (b x + a\right ) - \log \left (-\sin \left (b x + a\right ) + 1\right ) \sin \left (b x + a\right ) - 2}{4 \, b \sin \left (b x + a\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \csc{\left (a + b x \right )} \csc{\left (2 a + 2 b x \right )}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.60129, size = 653, normalized size = 23.32 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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