Optimal. Leaf size=48 \[ \frac{(a+b x) \text{Chi}(a+b x)^2}{b}-\frac{2 \text{Chi}(a+b x) \sinh (a+b x)}{b}+\frac{\text{Shi}(2 a+2 b x)}{b} \]
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Rubi [A] time = 0.0719404, antiderivative size = 48, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 8, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.625, Rules used = {6535, 6541, 5448, 12, 3298} \[ \frac{(a+b x) \text{Chi}(a+b x)^2}{b}-\frac{2 \text{Chi}(a+b x) \sinh (a+b x)}{b}+\frac{\text{Shi}(2 a+2 b x)}{b} \]
Antiderivative was successfully verified.
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Rule 6535
Rule 6541
Rule 5448
Rule 12
Rule 3298
Rubi steps
\begin{align*} \int \text{Chi}(a+b x)^2 \, dx &=\frac{(a+b x) \text{Chi}(a+b x)^2}{b}-2 \int \cosh (a+b x) \text{Chi}(a+b x) \, dx\\ &=\frac{(a+b x) \text{Chi}(a+b x)^2}{b}-\frac{2 \text{Chi}(a+b x) \sinh (a+b x)}{b}+2 \int \frac{\cosh (a+b x) \sinh (a+b x)}{a+b x} \, dx\\ &=\frac{(a+b x) \text{Chi}(a+b x)^2}{b}-\frac{2 \text{Chi}(a+b x) \sinh (a+b x)}{b}+2 \int \frac{\sinh (2 a+2 b x)}{2 (a+b x)} \, dx\\ &=\frac{(a+b x) \text{Chi}(a+b x)^2}{b}-\frac{2 \text{Chi}(a+b x) \sinh (a+b x)}{b}+\int \frac{\sinh (2 a+2 b x)}{a+b x} \, dx\\ &=\frac{(a+b x) \text{Chi}(a+b x)^2}{b}-\frac{2 \text{Chi}(a+b x) \sinh (a+b x)}{b}+\frac{\text{Shi}(2 a+2 b x)}{b}\\ \end{align*}
Mathematica [A] time = 0.0088699, size = 41, normalized size = 0.85 \[ \frac{(a+b x) \text{Chi}(a+b x)^2-2 \text{Chi}(a+b x) \sinh (a+b x)+\text{Shi}(2 (a+b x))}{b} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.046, size = 43, normalized size = 0.9 \begin{align*}{\frac{ \left ( bx+a \right ) \left ({\it Chi} \left ( bx+a \right ) \right ) ^{2}-2\,{\it Chi} \left ( bx+a \right ) \sinh \left ( bx+a \right ) +{\it Shi} \left ( 2\,bx+2\,a \right ) }{b}} \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{\rm Chi}\left (b x + a\right )^{2}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\operatorname{Chi}\left (b x + a\right )^{2}, 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 \operatorname{Chi}^{2}\left (a + b 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{\rm Chi}\left (b x + a\right )^{2}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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