Optimal. Leaf size=91 \[ \frac{a \tan ^{-1}\left (\frac{a \tan \left (\frac{1}{2} \left (c+d x^2\right )\right )+b}{\sqrt{a^2-b^2}}\right )}{d \left (a^2-b^2\right )^{3/2}}+\frac{b \cos \left (c+d x^2\right )}{2 d \left (a^2-b^2\right ) \left (a+b \sin \left (c+d x^2\right )\right )} \]
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Rubi [A] time = 0.102029, antiderivative size = 91, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.375, Rules used = {3379, 2664, 12, 2660, 618, 204} \[ \frac{a \tan ^{-1}\left (\frac{a \tan \left (\frac{1}{2} \left (c+d x^2\right )\right )+b}{\sqrt{a^2-b^2}}\right )}{d \left (a^2-b^2\right )^{3/2}}+\frac{b \cos \left (c+d x^2\right )}{2 d \left (a^2-b^2\right ) \left (a+b \sin \left (c+d x^2\right )\right )} \]
Antiderivative was successfully verified.
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Rule 3379
Rule 2664
Rule 12
Rule 2660
Rule 618
Rule 204
Rubi steps
\begin{align*} \int \frac{x}{\left (a+b \sin \left (c+d x^2\right )\right )^2} \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{1}{(a+b \sin (c+d x))^2} \, dx,x,x^2\right )\\ &=\frac{b \cos \left (c+d x^2\right )}{2 \left (a^2-b^2\right ) d \left (a+b \sin \left (c+d x^2\right )\right )}+\frac{\operatorname{Subst}\left (\int \frac{a}{a+b \sin (c+d x)} \, dx,x,x^2\right )}{2 \left (a^2-b^2\right )}\\ &=\frac{b \cos \left (c+d x^2\right )}{2 \left (a^2-b^2\right ) d \left (a+b \sin \left (c+d x^2\right )\right )}+\frac{a \operatorname{Subst}\left (\int \frac{1}{a+b \sin (c+d x)} \, dx,x,x^2\right )}{2 \left (a^2-b^2\right )}\\ &=\frac{b \cos \left (c+d x^2\right )}{2 \left (a^2-b^2\right ) d \left (a+b \sin \left (c+d x^2\right )\right )}+\frac{a \operatorname{Subst}\left (\int \frac{1}{a+2 b x+a x^2} \, dx,x,\tan \left (\frac{1}{2} \left (c+d x^2\right )\right )\right )}{\left (a^2-b^2\right ) d}\\ &=\frac{b \cos \left (c+d x^2\right )}{2 \left (a^2-b^2\right ) d \left (a+b \sin \left (c+d x^2\right )\right )}-\frac{(2 a) \operatorname{Subst}\left (\int \frac{1}{-4 \left (a^2-b^2\right )-x^2} \, dx,x,2 b+2 a \tan \left (\frac{1}{2} \left (c+d x^2\right )\right )\right )}{\left (a^2-b^2\right ) d}\\ &=\frac{a \tan ^{-1}\left (\frac{b+a \tan \left (\frac{1}{2} \left (c+d x^2\right )\right )}{\sqrt{a^2-b^2}}\right )}{\left (a^2-b^2\right )^{3/2} d}+\frac{b \cos \left (c+d x^2\right )}{2 \left (a^2-b^2\right ) d \left (a+b \sin \left (c+d x^2\right )\right )}\\ \end{align*}
Mathematica [A] time = 0.205112, size = 91, normalized size = 1. \[ \frac{\frac{2 a \tan ^{-1}\left (\frac{a \tan \left (\frac{1}{2} \left (c+d x^2\right )\right )+b}{\sqrt{a^2-b^2}}\right )}{\sqrt{a^2-b^2}}+\frac{b \cos \left (c+d x^2\right )}{a+b \sin \left (c+d x^2\right )}}{2 d (a-b) (a+b)} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.041, size = 164, normalized size = 1.8 \begin{align*}{\frac{{b}^{2}}{da \left ({a}^{2}-{b}^{2} \right ) }\tan \left ({\frac{d{x}^{2}}{2}}+{\frac{c}{2}} \right ) \left ( \left ( \tan \left ({\frac{d{x}^{2}}{2}}+{\frac{c}{2}} \right ) \right ) ^{2}a+2\,\tan \left ( 1/2\,d{x}^{2}+c/2 \right ) b+a \right ) ^{-1}}+{\frac{b}{d \left ({a}^{2}-{b}^{2} \right ) } \left ( \left ( \tan \left ({\frac{d{x}^{2}}{2}}+{\frac{c}{2}} \right ) \right ) ^{2}a+2\,\tan \left ( 1/2\,d{x}^{2}+c/2 \right ) b+a \right ) ^{-1}}+{\frac{a}{d}\arctan \left ({\frac{1}{2} \left ( 2\,a\tan \left ( 1/2\,d{x}^{2}+c/2 \right ) +2\,b \right ){\frac{1}{\sqrt{{a}^{2}-{b}^{2}}}}} \right ) \left ({a}^{2}-{b}^{2} \right ) ^{-{\frac{3}{2}}}} \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 [A] time = 2.10745, size = 798, normalized size = 8.77 \begin{align*} \left [\frac{{\left (a b \sin \left (d x^{2} + c\right ) + a^{2}\right )} \sqrt{-a^{2} + b^{2}} \log \left (-\frac{{\left (2 \, a^{2} - b^{2}\right )} \cos \left (d x^{2} + c\right )^{2} - 2 \, a b \sin \left (d x^{2} + c\right ) - a^{2} - b^{2} - 2 \,{\left (a \cos \left (d x^{2} + c\right ) \sin \left (d x^{2} + c\right ) + b \cos \left (d x^{2} + c\right )\right )} \sqrt{-a^{2} + b^{2}}}{b^{2} \cos \left (d x^{2} + c\right )^{2} - 2 \, a b \sin \left (d x^{2} + c\right ) - a^{2} - b^{2}}\right ) + 2 \,{\left (a^{2} b - b^{3}\right )} \cos \left (d x^{2} + c\right )}{4 \,{\left ({\left (a^{4} b - 2 \, a^{2} b^{3} + b^{5}\right )} d \sin \left (d x^{2} + c\right ) +{\left (a^{5} - 2 \, a^{3} b^{2} + a b^{4}\right )} d\right )}}, -\frac{{\left (a b \sin \left (d x^{2} + c\right ) + a^{2}\right )} \sqrt{a^{2} - b^{2}} \arctan \left (-\frac{a \sin \left (d x^{2} + c\right ) + b}{\sqrt{a^{2} - b^{2}} \cos \left (d x^{2} + c\right )}\right ) -{\left (a^{2} b - b^{3}\right )} \cos \left (d x^{2} + c\right )}{2 \,{\left ({\left (a^{4} b - 2 \, a^{2} b^{3} + b^{5}\right )} d \sin \left (d x^{2} + c\right ) +{\left (a^{5} - 2 \, a^{3} b^{2} + a b^{4}\right )} d\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [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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Giac [A] time = 1.11736, size = 194, normalized size = 2.13 \begin{align*} \frac{{\left (\pi \left \lfloor \frac{d x^{2} + c}{2 \, \pi } + \frac{1}{2} \right \rfloor \mathrm{sgn}\left (a\right ) + \arctan \left (\frac{a \tan \left (\frac{1}{2} \, d x^{2} + \frac{1}{2} \, c\right ) + b}{\sqrt{a^{2} - b^{2}}}\right )\right )} a}{{\left (a^{2} d - b^{2} d\right )} \sqrt{a^{2} - b^{2}}} + \frac{b^{2} \tan \left (\frac{1}{2} \, d x^{2} + \frac{1}{2} \, c\right ) + a b}{{\left (a^{3} d - a b^{2} d\right )}{\left (a \tan \left (\frac{1}{2} \, d x^{2} + \frac{1}{2} \, c\right )^{2} + 2 \, b \tan \left (\frac{1}{2} \, d x^{2} + \frac{1}{2} \, c\right ) + a\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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