Optimal. Leaf size=64 \[ -\frac{2 b \sqrt{c+d x-1} \sqrt{c+d x+1} \left (a+b \cosh ^{-1}(c+d x)\right )}{d}+\frac{(c+d x) \left (a+b \cosh ^{-1}(c+d x)\right )^2}{d}+2 b^2 x \]
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Rubi [A] time = 0.124695, antiderivative size = 64, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 12, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.333, Rules used = {5864, 5654, 5718, 8} \[ -\frac{2 b \sqrt{c+d x-1} \sqrt{c+d x+1} \left (a+b \cosh ^{-1}(c+d x)\right )}{d}+\frac{(c+d x) \left (a+b \cosh ^{-1}(c+d x)\right )^2}{d}+2 b^2 x \]
Antiderivative was successfully verified.
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Rule 5864
Rule 5654
Rule 5718
Rule 8
Rubi steps
\begin{align*} \int \left (a+b \cosh ^{-1}(c+d x)\right )^2 \, dx &=\frac{\operatorname{Subst}\left (\int \left (a+b \cosh ^{-1}(x)\right )^2 \, dx,x,c+d x\right )}{d}\\ &=\frac{(c+d x) \left (a+b \cosh ^{-1}(c+d x)\right )^2}{d}-\frac{(2 b) \operatorname{Subst}\left (\int \frac{x \left (a+b \cosh ^{-1}(x)\right )}{\sqrt{-1+x} \sqrt{1+x}} \, dx,x,c+d x\right )}{d}\\ &=-\frac{2 b \sqrt{-1+c+d x} \sqrt{1+c+d x} \left (a+b \cosh ^{-1}(c+d x)\right )}{d}+\frac{(c+d x) \left (a+b \cosh ^{-1}(c+d x)\right )^2}{d}+\frac{\left (2 b^2\right ) \operatorname{Subst}(\int 1 \, dx,x,c+d x)}{d}\\ &=2 b^2 x-\frac{2 b \sqrt{-1+c+d x} \sqrt{1+c+d x} \left (a+b \cosh ^{-1}(c+d x)\right )}{d}+\frac{(c+d x) \left (a+b \cosh ^{-1}(c+d x)\right )^2}{d}\\ \end{align*}
Mathematica [A] time = 0.0835136, size = 105, normalized size = 1.64 \[ \frac{a^2 (c+d x)-2 a b \sqrt{c+d x-1} \sqrt{c+d x+1}-2 b \cosh ^{-1}(c+d x) \left (b \sqrt{c+d x-1} \sqrt{c+d x+1}-a (c+d x)\right )+2 b^2 (c+d x)+b^2 (c+d x) \cosh ^{-1}(c+d x)^2}{d} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.003, size = 100, normalized size = 1.6 \begin{align*}{\frac{1}{d} \left ( \left ( dx+c \right ){a}^{2}+{b}^{2} \left ( \left ({\rm arccosh} \left (dx+c\right ) \right ) ^{2} \left ( dx+c \right ) -2\,{\rm arccosh} \left (dx+c\right )\sqrt{dx+c-1}\sqrt{dx+c+1}+2\,dx+2\,c \right ) +2\,ab \left ( \left ( dx+c \right ){\rm arccosh} \left (dx+c\right )-\sqrt{dx+c-1}\sqrt{dx+c+1} \right ) \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 2.37372, size = 333, normalized size = 5.2 \begin{align*} \frac{{\left (a^{2} + 2 \, b^{2}\right )} d x +{\left (b^{2} d x + b^{2} c\right )} \log \left (d x + c + \sqrt{d^{2} x^{2} + 2 \, c d x + c^{2} - 1}\right )^{2} - 2 \, \sqrt{d^{2} x^{2} + 2 \, c d x + c^{2} - 1} a b + 2 \,{\left (a b d x + a b c - \sqrt{d^{2} x^{2} + 2 \, c d x + c^{2} - 1} b^{2}\right )} \log \left (d x + c + \sqrt{d^{2} x^{2} + 2 \, c d x + c^{2} - 1}\right )}{d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.479235, size = 143, normalized size = 2.23 \begin{align*} \begin{cases} a^{2} x + \frac{2 a b c \operatorname{acosh}{\left (c + d x \right )}}{d} + 2 a b x \operatorname{acosh}{\left (c + d x \right )} - \frac{2 a b \sqrt{c^{2} + 2 c d x + d^{2} x^{2} - 1}}{d} + \frac{b^{2} c \operatorname{acosh}^{2}{\left (c + d x \right )}}{d} + b^{2} x \operatorname{acosh}^{2}{\left (c + d x \right )} + 2 b^{2} x - \frac{2 b^{2} \sqrt{c^{2} + 2 c d x + d^{2} x^{2} - 1} \operatorname{acosh}{\left (c + d x \right )}}{d} & \text{for}\: d \neq 0 \\x \left (a + b \operatorname{acosh}{\left (c \right )}\right )^{2} & \text{otherwise} \end{cases} \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{\left (b \operatorname{arcosh}\left (d x + c\right ) + a\right )}^{2}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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