Optimal. Leaf size=70 \[ \frac{\tanh ^{-1}\left (\frac{a-b \tan ^2(x)}{\sqrt{a+b} \sqrt{a+b \tan ^4(x)}}\right )}{2 \sqrt{a+b}}-\frac{\tanh ^{-1}\left (\frac{\sqrt{a+b \tan ^4(x)}}{\sqrt{a}}\right )}{2 \sqrt{a}} \]
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Rubi [A] time = 0.158019, antiderivative size = 70, normalized size of antiderivative = 1., number of steps used = 9, number of rules used = 8, integrand size = 15, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.533, Rules used = {3670, 1252, 961, 725, 206, 266, 63, 208} \[ \frac{\tanh ^{-1}\left (\frac{a-b \tan ^2(x)}{\sqrt{a+b} \sqrt{a+b \tan ^4(x)}}\right )}{2 \sqrt{a+b}}-\frac{\tanh ^{-1}\left (\frac{\sqrt{a+b \tan ^4(x)}}{\sqrt{a}}\right )}{2 \sqrt{a}} \]
Antiderivative was successfully verified.
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Rule 3670
Rule 1252
Rule 961
Rule 725
Rule 206
Rule 266
Rule 63
Rule 208
Rubi steps
\begin{align*} \int \frac{\cot (x)}{\sqrt{a+b \tan ^4(x)}} \, dx &=\operatorname{Subst}\left (\int \frac{1}{x \left (1+x^2\right ) \sqrt{a+b x^4}} \, dx,x,\tan (x)\right )\\ &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{x (1+x) \sqrt{a+b x^2}} \, dx,x,\tan ^2(x)\right )\\ &=\frac{1}{2} \operatorname{Subst}\left (\int \left (\frac{1}{(-1-x) \sqrt{a+b x^2}}+\frac{1}{x \sqrt{a+b x^2}}\right ) \, dx,x,\tan ^2(x)\right )\\ &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{(-1-x) \sqrt{a+b x^2}} \, dx,x,\tan ^2(x)\right )+\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{x \sqrt{a+b x^2}} \, dx,x,\tan ^2(x)\right )\\ &=\frac{1}{4} \operatorname{Subst}\left (\int \frac{1}{x \sqrt{a+b x}} \, dx,x,\tan ^4(x)\right )-\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{a+b-x^2} \, dx,x,\frac{-a+b \tan ^2(x)}{\sqrt{a+b \tan ^4(x)}}\right )\\ &=\frac{\tanh ^{-1}\left (\frac{a-b \tan ^2(x)}{\sqrt{a+b} \sqrt{a+b \tan ^4(x)}}\right )}{2 \sqrt{a+b}}+\frac{\operatorname{Subst}\left (\int \frac{1}{-\frac{a}{b}+\frac{x^2}{b}} \, dx,x,\sqrt{a+b \tan ^4(x)}\right )}{2 b}\\ &=\frac{\tanh ^{-1}\left (\frac{a-b \tan ^2(x)}{\sqrt{a+b} \sqrt{a+b \tan ^4(x)}}\right )}{2 \sqrt{a+b}}-\frac{\tanh ^{-1}\left (\frac{\sqrt{a+b \tan ^4(x)}}{\sqrt{a}}\right )}{2 \sqrt{a}}\\ \end{align*}
Mathematica [A] time = 0.0484304, size = 70, normalized size = 1. \[ \frac{\tanh ^{-1}\left (\frac{a-b \tan ^2(x)}{\sqrt{a+b} \sqrt{a+b \tan ^4(x)}}\right )}{2 \sqrt{a+b}}-\frac{\tanh ^{-1}\left (\frac{\sqrt{a+b \tan ^4(x)}}{\sqrt{a}}\right )}{2 \sqrt{a}} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.148, size = 0, normalized size = 0. \begin{align*} \int{\cot \left ( x \right ){\frac{1}{\sqrt{a+b \left ( \tan \left ( x \right ) \right ) ^{4}}}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\cot \left (x\right )}{\sqrt{b \tan \left (x\right )^{4} + a}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 3.1643, size = 1226, normalized size = 17.51 \begin{align*} \left [\frac{\sqrt{a + b} a \log \left (\frac{{\left (a b + 2 \, b^{2}\right )} \tan \left (x\right )^{4} - 2 \, a b \tan \left (x\right )^{2} - 2 \, \sqrt{b \tan \left (x\right )^{4} + a}{\left (b \tan \left (x\right )^{2} - a\right )} \sqrt{a + b} + 2 \, a^{2} + a b}{\tan \left (x\right )^{4} + 2 \, \tan \left (x\right )^{2} + 1}\right ) +{\left (a + b\right )} \sqrt{a} \log \left (-\frac{b \tan \left (x\right )^{4} - 2 \, \sqrt{b \tan \left (x\right )^{4} + a} \sqrt{a} + 2 \, a}{\tan \left (x\right )^{4}}\right )}{4 \,{\left (a^{2} + a b\right )}}, \frac{2 \, \sqrt{-a}{\left (a + b\right )} \arctan \left (\frac{\sqrt{b \tan \left (x\right )^{4} + a} \sqrt{-a}}{a}\right ) + \sqrt{a + b} a \log \left (\frac{{\left (a b + 2 \, b^{2}\right )} \tan \left (x\right )^{4} - 2 \, a b \tan \left (x\right )^{2} - 2 \, \sqrt{b \tan \left (x\right )^{4} + a}{\left (b \tan \left (x\right )^{2} - a\right )} \sqrt{a + b} + 2 \, a^{2} + a b}{\tan \left (x\right )^{4} + 2 \, \tan \left (x\right )^{2} + 1}\right )}{4 \,{\left (a^{2} + a b\right )}}, \frac{2 \, a \sqrt{-a - b} \arctan \left (\frac{\sqrt{b \tan \left (x\right )^{4} + a}{\left (b \tan \left (x\right )^{2} - a\right )} \sqrt{-a - b}}{{\left (a b + b^{2}\right )} \tan \left (x\right )^{4} + a^{2} + a b}\right ) +{\left (a + b\right )} \sqrt{a} \log \left (-\frac{b \tan \left (x\right )^{4} - 2 \, \sqrt{b \tan \left (x\right )^{4} + a} \sqrt{a} + 2 \, a}{\tan \left (x\right )^{4}}\right )}{4 \,{\left (a^{2} + a b\right )}}, \frac{a \sqrt{-a - b} \arctan \left (\frac{\sqrt{b \tan \left (x\right )^{4} + a}{\left (b \tan \left (x\right )^{2} - a\right )} \sqrt{-a - b}}{{\left (a b + b^{2}\right )} \tan \left (x\right )^{4} + a^{2} + a b}\right ) + \sqrt{-a}{\left (a + b\right )} \arctan \left (\frac{\sqrt{b \tan \left (x\right )^{4} + a} \sqrt{-a}}{a}\right )}{2 \,{\left (a^{2} + a b\right )}}\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{\cot{\left (x \right )}}{\sqrt{a + b \tan ^{4}{\left (x \right )}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\cot \left (x\right )}{\sqrt{b \tan \left (x\right )^{4} + a}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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