Optimal. Leaf size=127 \[ -\frac{5 a^2 x^{3/2} \sqrt{a-b x}}{96 b^2}-\frac{5 a^3 \sqrt{x} \sqrt{a-b x}}{64 b^3}+\frac{5 a^4 \tan ^{-1}\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a-b x}}\right )}{64 b^{7/2}}-\frac{a x^{5/2} \sqrt{a-b x}}{24 b}+\frac{1}{4} x^{7/2} \sqrt{a-b x} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.0422133, antiderivative size = 127, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 4, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {50, 63, 217, 203} \[ -\frac{5 a^2 x^{3/2} \sqrt{a-b x}}{96 b^2}-\frac{5 a^3 \sqrt{x} \sqrt{a-b x}}{64 b^3}+\frac{5 a^4 \tan ^{-1}\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a-b x}}\right )}{64 b^{7/2}}-\frac{a x^{5/2} \sqrt{a-b x}}{24 b}+\frac{1}{4} x^{7/2} \sqrt{a-b x} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 50
Rule 63
Rule 217
Rule 203
Rubi steps
\begin{align*} \int x^{5/2} \sqrt{a-b x} \, dx &=\frac{1}{4} x^{7/2} \sqrt{a-b x}+\frac{1}{8} a \int \frac{x^{5/2}}{\sqrt{a-b x}} \, dx\\ &=-\frac{a x^{5/2} \sqrt{a-b x}}{24 b}+\frac{1}{4} x^{7/2} \sqrt{a-b x}+\frac{\left (5 a^2\right ) \int \frac{x^{3/2}}{\sqrt{a-b x}} \, dx}{48 b}\\ &=-\frac{5 a^2 x^{3/2} \sqrt{a-b x}}{96 b^2}-\frac{a x^{5/2} \sqrt{a-b x}}{24 b}+\frac{1}{4} x^{7/2} \sqrt{a-b x}+\frac{\left (5 a^3\right ) \int \frac{\sqrt{x}}{\sqrt{a-b x}} \, dx}{64 b^2}\\ &=-\frac{5 a^3 \sqrt{x} \sqrt{a-b x}}{64 b^3}-\frac{5 a^2 x^{3/2} \sqrt{a-b x}}{96 b^2}-\frac{a x^{5/2} \sqrt{a-b x}}{24 b}+\frac{1}{4} x^{7/2} \sqrt{a-b x}+\frac{\left (5 a^4\right ) \int \frac{1}{\sqrt{x} \sqrt{a-b x}} \, dx}{128 b^3}\\ &=-\frac{5 a^3 \sqrt{x} \sqrt{a-b x}}{64 b^3}-\frac{5 a^2 x^{3/2} \sqrt{a-b x}}{96 b^2}-\frac{a x^{5/2} \sqrt{a-b x}}{24 b}+\frac{1}{4} x^{7/2} \sqrt{a-b x}+\frac{\left (5 a^4\right ) \operatorname{Subst}\left (\int \frac{1}{\sqrt{a-b x^2}} \, dx,x,\sqrt{x}\right )}{64 b^3}\\ &=-\frac{5 a^3 \sqrt{x} \sqrt{a-b x}}{64 b^3}-\frac{5 a^2 x^{3/2} \sqrt{a-b x}}{96 b^2}-\frac{a x^{5/2} \sqrt{a-b x}}{24 b}+\frac{1}{4} x^{7/2} \sqrt{a-b x}+\frac{\left (5 a^4\right ) \operatorname{Subst}\left (\int \frac{1}{1+b x^2} \, dx,x,\frac{\sqrt{x}}{\sqrt{a-b x}}\right )}{64 b^3}\\ &=-\frac{5 a^3 \sqrt{x} \sqrt{a-b x}}{64 b^3}-\frac{5 a^2 x^{3/2} \sqrt{a-b x}}{96 b^2}-\frac{a x^{5/2} \sqrt{a-b x}}{24 b}+\frac{1}{4} x^{7/2} \sqrt{a-b x}+\frac{5 a^4 \tan ^{-1}\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a-b x}}\right )}{64 b^{7/2}}\\ \end{align*}
Mathematica [A] time = 0.136363, size = 98, normalized size = 0.77 \[ \frac{\sqrt{a-b x} \left (\sqrt{b} \sqrt{x} \left (-10 a^2 b x-15 a^3-8 a b^2 x^2+48 b^3 x^3\right )+\frac{15 a^{7/2} \sin ^{-1}\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a}}\right )}{\sqrt{1-\frac{b x}{a}}}\right )}{192 b^{7/2}} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.007, size = 127, normalized size = 1. \begin{align*} -{\frac{1}{4\,b}{x}^{{\frac{5}{2}}} \left ( -bx+a \right ) ^{{\frac{3}{2}}}}-{\frac{5\,a}{24\,{b}^{2}}{x}^{{\frac{3}{2}}} \left ( -bx+a \right ) ^{{\frac{3}{2}}}}-{\frac{5\,{a}^{2}}{32\,{b}^{3}} \left ( -bx+a \right ) ^{{\frac{3}{2}}}\sqrt{x}}+{\frac{5\,{a}^{3}}{64\,{b}^{3}}\sqrt{x}\sqrt{-bx+a}}+{\frac{5\,{a}^{4}}{128}\sqrt{x \left ( -bx+a \right ) }\arctan \left ({\sqrt{b} \left ( x-{\frac{a}{2\,b}} \right ){\frac{1}{\sqrt{-b{x}^{2}+ax}}}} \right ){b}^{-{\frac{7}{2}}}{\frac{1}{\sqrt{-bx+a}}}{\frac{1}{\sqrt{x}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
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.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 1.62109, size = 424, normalized size = 3.34 \begin{align*} \left [-\frac{15 \, a^{4} \sqrt{-b} \log \left (-2 \, b x + 2 \, \sqrt{-b x + a} \sqrt{-b} \sqrt{x} + a\right ) - 2 \,{\left (48 \, b^{4} x^{3} - 8 \, a b^{3} x^{2} - 10 \, a^{2} b^{2} x - 15 \, a^{3} b\right )} \sqrt{-b x + a} \sqrt{x}}{384 \, b^{4}}, -\frac{15 \, a^{4} \sqrt{b} \arctan \left (\frac{\sqrt{-b x + a}}{\sqrt{b} \sqrt{x}}\right ) -{\left (48 \, b^{4} x^{3} - 8 \, a b^{3} x^{2} - 10 \, a^{2} b^{2} x - 15 \, a^{3} b\right )} \sqrt{-b x + a} \sqrt{x}}{192 \, b^{4}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [A] time = 21.3753, size = 325, normalized size = 2.56 \begin{align*} \begin{cases} \frac{5 i a^{\frac{7}{2}} \sqrt{x}}{64 b^{3} \sqrt{-1 + \frac{b x}{a}}} - \frac{5 i a^{\frac{5}{2}} x^{\frac{3}{2}}}{192 b^{2} \sqrt{-1 + \frac{b x}{a}}} - \frac{i a^{\frac{3}{2}} x^{\frac{5}{2}}}{96 b \sqrt{-1 + \frac{b x}{a}}} - \frac{7 i \sqrt{a} x^{\frac{7}{2}}}{24 \sqrt{-1 + \frac{b x}{a}}} - \frac{5 i a^{4} \operatorname{acosh}{\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a}} \right )}}{64 b^{\frac{7}{2}}} + \frac{i b x^{\frac{9}{2}}}{4 \sqrt{a} \sqrt{-1 + \frac{b x}{a}}} & \text{for}\: \frac{\left |{b x}\right |}{\left |{a}\right |} > 1 \\- \frac{5 a^{\frac{7}{2}} \sqrt{x}}{64 b^{3} \sqrt{1 - \frac{b x}{a}}} + \frac{5 a^{\frac{5}{2}} x^{\frac{3}{2}}}{192 b^{2} \sqrt{1 - \frac{b x}{a}}} + \frac{a^{\frac{3}{2}} x^{\frac{5}{2}}}{96 b \sqrt{1 - \frac{b x}{a}}} + \frac{7 \sqrt{a} x^{\frac{7}{2}}}{24 \sqrt{1 - \frac{b x}{a}}} + \frac{5 a^{4} \operatorname{asin}{\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a}} \right )}}{64 b^{\frac{7}{2}}} - \frac{b x^{\frac{9}{2}}}{4 \sqrt{a} \sqrt{1 - \frac{b x}{a}}} & \text{otherwise} \end{cases} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [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.
[In]
[Out]