Optimal. Leaf size=69 \[ -\frac{2 b \tan ^{-1}\left (\frac{a-\tan \left (\frac{1}{2} \csc ^{-1}(a+b x)\right )}{\sqrt{1-a^2}}\right )}{a \sqrt{1-a^2}}-\frac{b \csc ^{-1}(a+b x)}{a}-\frac{\csc ^{-1}(a+b x)}{x} \]
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Rubi [A] time = 0.096016, antiderivative size = 69, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 10, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.6, Rules used = {5259, 4427, 3783, 2660, 618, 204} \[ -\frac{2 b \tan ^{-1}\left (\frac{a-\tan \left (\frac{1}{2} \csc ^{-1}(a+b x)\right )}{\sqrt{1-a^2}}\right )}{a \sqrt{1-a^2}}-\frac{b \csc ^{-1}(a+b x)}{a}-\frac{\csc ^{-1}(a+b x)}{x} \]
Antiderivative was successfully verified.
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Rule 5259
Rule 4427
Rule 3783
Rule 2660
Rule 618
Rule 204
Rubi steps
\begin{align*} \int \frac{\csc ^{-1}(a+b x)}{x^2} \, dx &=-\left (b \operatorname{Subst}\left (\int \frac{x \cot (x) \csc (x)}{(-a+\csc (x))^2} \, dx,x,\csc ^{-1}(a+b x)\right )\right )\\ &=-\frac{\csc ^{-1}(a+b x)}{x}+b \operatorname{Subst}\left (\int \frac{1}{-a+\csc (x)} \, dx,x,\csc ^{-1}(a+b x)\right )\\ &=-\frac{b \csc ^{-1}(a+b x)}{a}-\frac{\csc ^{-1}(a+b x)}{x}+\frac{b \operatorname{Subst}\left (\int \frac{1}{1-a \sin (x)} \, dx,x,\csc ^{-1}(a+b x)\right )}{a}\\ &=-\frac{b \csc ^{-1}(a+b x)}{a}-\frac{\csc ^{-1}(a+b x)}{x}+\frac{(2 b) \operatorname{Subst}\left (\int \frac{1}{1-2 a x+x^2} \, dx,x,\tan \left (\frac{1}{2} \csc ^{-1}(a+b x)\right )\right )}{a}\\ &=-\frac{b \csc ^{-1}(a+b x)}{a}-\frac{\csc ^{-1}(a+b x)}{x}-\frac{(4 b) \operatorname{Subst}\left (\int \frac{1}{-4 \left (1-a^2\right )-x^2} \, dx,x,-2 a+2 \tan \left (\frac{1}{2} \csc ^{-1}(a+b x)\right )\right )}{a}\\ &=-\frac{b \csc ^{-1}(a+b x)}{a}-\frac{\csc ^{-1}(a+b x)}{x}-\frac{2 b \tan ^{-1}\left (\frac{a-\tan \left (\frac{1}{2} \csc ^{-1}(a+b x)\right )}{\sqrt{1-a^2}}\right )}{a \sqrt{1-a^2}}\\ \end{align*}
Mathematica [C] time = 0.389594, size = 115, normalized size = 1.67 \[ -\frac{\csc ^{-1}(a+b x)}{x}+\frac{b \left (-\sin ^{-1}\left (\frac{1}{a+b x}\right )+\frac{i \log \left (\frac{2 \left (-a \sqrt{\frac{a^2+2 a b x+b^2 x^2-1}{(a+b x)^2}} (a+b x)-\frac{i a \left (a^2+a b x-1\right )}{\sqrt{1-a^2}}\right )}{b x}\right )}{\sqrt{1-a^2}}\right )}{a} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.237, size = 154, normalized size = 2.2 \begin{align*} -{\frac{{\rm arccsc} \left (bx+a\right )}{x}}-{\frac{b}{a \left ( bx+a \right ) }\sqrt{-1+ \left ( bx+a \right ) ^{2}}\arctan \left ({\frac{1}{\sqrt{-1+ \left ( bx+a \right ) ^{2}}}} \right ){\frac{1}{\sqrt{{\frac{-1+ \left ( bx+a \right ) ^{2}}{ \left ( bx+a \right ) ^{2}}}}}}}+{\frac{b}{a \left ( bx+a \right ) }\sqrt{-1+ \left ( bx+a \right ) ^{2}}\ln \left ( 2\,{\frac{\sqrt{{a}^{2}-1}\sqrt{-1+ \left ( bx+a \right ) ^{2}}+a \left ( bx+a \right ) -1}{bx}} \right ){\frac{1}{\sqrt{{\frac{-1+ \left ( bx+a \right ) ^{2}}{ \left ( bx+a \right ) ^{2}}}}}}{\frac{1}{\sqrt{{a}^{2}-1}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 3.19893, size = 663, normalized size = 9.61 \begin{align*} \left [\frac{2 \,{\left (a^{2} - 1\right )} b x \arctan \left (-b x - a + \sqrt{b^{2} x^{2} + 2 \, a b x + a^{2} - 1}\right ) + \sqrt{a^{2} - 1} b x \log \left (\frac{a^{2} b x + a^{3} + \sqrt{b^{2} x^{2} + 2 \, a b x + a^{2} - 1}{\left (a^{2} + \sqrt{a^{2} - 1} a - 1\right )} +{\left (a b x + a^{2} - 1\right )} \sqrt{a^{2} - 1} - a}{x}\right ) -{\left (a^{3} - a\right )} \operatorname{arccsc}\left (b x + a\right )}{{\left (a^{3} - a\right )} x}, \frac{2 \,{\left (a^{2} - 1\right )} b x \arctan \left (-b x - a + \sqrt{b^{2} x^{2} + 2 \, a b x + a^{2} - 1}\right ) - 2 \, \sqrt{-a^{2} + 1} b x \arctan \left (-\frac{\sqrt{-a^{2} + 1} b x - \sqrt{b^{2} x^{2} + 2 \, a b x + a^{2} - 1} \sqrt{-a^{2} + 1}}{a^{2} - 1}\right ) -{\left (a^{3} - a\right )} \operatorname{arccsc}\left (b x + a\right )}{{\left (a^{3} - a\right )} x}\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 \frac{\operatorname{acsc}{\left (a + b x \right )}}{x^{2}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.53862, size = 174, normalized size = 2.52 \begin{align*} 2 \, b{\left (\frac{\arctan \left (-\frac{{\left (x{\left | b \right |} - \sqrt{b^{2} x^{2} + 2 \, a b x + a^{2} - 1}\right )} b + a{\left | b \right |}}{b}\right )}{a \mathrm{sgn}\left (b x + a\right )} - \frac{\arctan \left (-\frac{x{\left | b \right |} - \sqrt{b^{2} x^{2} + 2 \, a b x + a^{2} - 1}}{\sqrt{-a^{2} + 1}}\right )}{\sqrt{-a^{2} + 1} a \mathrm{sgn}\left (b x + a\right )}\right )} - \frac{\arcsin \left (\frac{1}{b x + a}\right )}{x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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