Optimal. Leaf size=47 \[ \frac{d \tan ^{-1}\left (\frac{e x}{\sqrt{d^2-e^2 x^2}}\right )}{e}-\frac{\sqrt{d^2-e^2 x^2}}{e} \]
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Rubi [A] time = 0.0123493, antiderivative size = 47, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.136, Rules used = {641, 217, 203} \[ \frac{d \tan ^{-1}\left (\frac{e x}{\sqrt{d^2-e^2 x^2}}\right )}{e}-\frac{\sqrt{d^2-e^2 x^2}}{e} \]
Antiderivative was successfully verified.
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Rule 641
Rule 217
Rule 203
Rubi steps
\begin{align*} \int \frac{d+e x}{\sqrt{d^2-e^2 x^2}} \, dx &=-\frac{\sqrt{d^2-e^2 x^2}}{e}+d \int \frac{1}{\sqrt{d^2-e^2 x^2}} \, dx\\ &=-\frac{\sqrt{d^2-e^2 x^2}}{e}+d \operatorname{Subst}\left (\int \frac{1}{1+e^2 x^2} \, dx,x,\frac{x}{\sqrt{d^2-e^2 x^2}}\right )\\ &=-\frac{\sqrt{d^2-e^2 x^2}}{e}+\frac{d \tan ^{-1}\left (\frac{e x}{\sqrt{d^2-e^2 x^2}}\right )}{e}\\ \end{align*}
Mathematica [A] time = 0.0152537, size = 47, normalized size = 1. \[ \frac{d \tan ^{-1}\left (\frac{e x}{\sqrt{d^2-e^2 x^2}}\right )}{e}-\frac{\sqrt{d^2-e^2 x^2}}{e} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.044, size = 50, normalized size = 1.1 \begin{align*} -{\frac{1}{e}\sqrt{-{e}^{2}{x}^{2}+{d}^{2}}}+{d\arctan \left ({x\sqrt{{e}^{2}}{\frac{1}{\sqrt{-{e}^{2}{x}^{2}+{d}^{2}}}}} \right ){\frac{1}{\sqrt{{e}^{2}}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.96742, size = 57, normalized size = 1.21 \begin{align*} \frac{d \arcsin \left (\frac{e^{2} x}{\sqrt{d^{2} e^{2}}}\right )}{\sqrt{e^{2}}} - \frac{\sqrt{-e^{2} x^{2} + d^{2}}}{e} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.13811, size = 101, normalized size = 2.15 \begin{align*} -\frac{2 \, d \arctan \left (-\frac{d - \sqrt{-e^{2} x^{2} + d^{2}}}{e x}\right ) + \sqrt{-e^{2} x^{2} + d^{2}}}{e} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 1.52875, size = 42, normalized size = 0.89 \begin{align*} \begin{cases} \frac{d \left (\begin{cases} \operatorname{asin}{\left (e x \sqrt{\frac{1}{d^{2}}} \right )} & \text{for}\: d^{2} > 0 \end{cases}\right ) - \sqrt{d^{2} - e^{2} x^{2}}}{e} & \text{for}\: e \neq 0 \\\frac{d x}{\sqrt{d^{2}}} & \text{otherwise} \end{cases} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.26415, size = 43, normalized size = 0.91 \begin{align*} d \arcsin \left (\frac{x e}{d}\right ) e^{\left (-1\right )} \mathrm{sgn}\left (d\right ) - \sqrt{-x^{2} e^{2} + d^{2}} e^{\left (-1\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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