Integrand size = 17, antiderivative size = 86 \[ \int \frac {(c+d x)^{3/2}}{a+b x} \, dx=\frac {2 (b c-a d) \sqrt {c+d x}}{b^2}+\frac {2 (c+d x)^{3/2}}{3 b}-\frac {2 (b c-a d)^{3/2} \text {arctanh}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {b c-a d}}\right )}{b^{5/2}} \]
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Time = 0.03 (sec) , antiderivative size = 86, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.176, Rules used = {52, 65, 214} \[ \int \frac {(c+d x)^{3/2}}{a+b x} \, dx=-\frac {2 (b c-a d)^{3/2} \text {arctanh}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {b c-a d}}\right )}{b^{5/2}}+\frac {2 \sqrt {c+d x} (b c-a d)}{b^2}+\frac {2 (c+d x)^{3/2}}{3 b} \]
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Rule 52
Rule 65
Rule 214
Rubi steps \begin{align*} \text {integral}& = \frac {2 (c+d x)^{3/2}}{3 b}+\frac {(b c-a d) \int \frac {\sqrt {c+d x}}{a+b x} \, dx}{b} \\ & = \frac {2 (b c-a d) \sqrt {c+d x}}{b^2}+\frac {2 (c+d x)^{3/2}}{3 b}+\frac {(b c-a d)^2 \int \frac {1}{(a+b x) \sqrt {c+d x}} \, dx}{b^2} \\ & = \frac {2 (b c-a d) \sqrt {c+d x}}{b^2}+\frac {2 (c+d x)^{3/2}}{3 b}+\frac {\left (2 (b c-a d)^2\right ) \text {Subst}\left (\int \frac {1}{a-\frac {b c}{d}+\frac {b x^2}{d}} \, dx,x,\sqrt {c+d x}\right )}{b^2 d} \\ & = \frac {2 (b c-a d) \sqrt {c+d x}}{b^2}+\frac {2 (c+d x)^{3/2}}{3 b}-\frac {2 (b c-a d)^{3/2} \tanh ^{-1}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {b c-a d}}\right )}{b^{5/2}} \\ \end{align*}
Time = 0.14 (sec) , antiderivative size = 77, normalized size of antiderivative = 0.90 \[ \int \frac {(c+d x)^{3/2}}{a+b x} \, dx=\frac {2 \sqrt {c+d x} (4 b c-3 a d+b d x)}{3 b^2}+\frac {2 (-b c+a d)^{3/2} \arctan \left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {-b c+a d}}\right )}{b^{5/2}} \]
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Time = 0.73 (sec) , antiderivative size = 88, normalized size of antiderivative = 1.02
method | result | size |
risch | \(-\frac {2 \left (-b d x +3 a d -4 b c \right ) \sqrt {d x +c}}{3 b^{2}}+\frac {2 \left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right ) \arctan \left (\frac {b \sqrt {d x +c}}{\sqrt {\left (a d -b c \right ) b}}\right )}{b^{2} \sqrt {\left (a d -b c \right ) b}}\) | \(88\) |
pseudoelliptic | \(-\frac {2 \left (-\left (a d -b c \right )^{2} \arctan \left (\frac {b \sqrt {d x +c}}{\sqrt {\left (a d -b c \right ) b}}\right )+\sqrt {\left (a d -b c \right ) b}\, \sqrt {d x +c}\, \left (\frac {\left (-d x -4 c \right ) b}{3}+a d \right )\right )}{\sqrt {\left (a d -b c \right ) b}\, b^{2}}\) | \(88\) |
derivativedivides | \(-\frac {2 \left (-\frac {b \left (d x +c \right )^{\frac {3}{2}}}{3}+\sqrt {d x +c}\, a d -\sqrt {d x +c}\, b c \right )}{b^{2}}+\frac {2 \left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right ) \arctan \left (\frac {b \sqrt {d x +c}}{\sqrt {\left (a d -b c \right ) b}}\right )}{b^{2} \sqrt {\left (a d -b c \right ) b}}\) | \(99\) |
default | \(-\frac {2 \left (-\frac {b \left (d x +c \right )^{\frac {3}{2}}}{3}+\sqrt {d x +c}\, a d -\sqrt {d x +c}\, b c \right )}{b^{2}}+\frac {2 \left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right ) \arctan \left (\frac {b \sqrt {d x +c}}{\sqrt {\left (a d -b c \right ) b}}\right )}{b^{2} \sqrt {\left (a d -b c \right ) b}}\) | \(99\) |
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Time = 0.23 (sec) , antiderivative size = 188, normalized size of antiderivative = 2.19 \[ \int \frac {(c+d x)^{3/2}}{a+b x} \, dx=\left [-\frac {3 \, {\left (b c - a d\right )} \sqrt {\frac {b c - a d}{b}} \log \left (\frac {b d x + 2 \, b c - a d + 2 \, \sqrt {d x + c} b \sqrt {\frac {b c - a d}{b}}}{b x + a}\right ) - 2 \, {\left (b d x + 4 \, b c - 3 \, a d\right )} \sqrt {d x + c}}{3 \, b^{2}}, -\frac {2 \, {\left (3 \, {\left (b c - a d\right )} \sqrt {-\frac {b c - a d}{b}} \arctan \left (-\frac {\sqrt {d x + c} b \sqrt {-\frac {b c - a d}{b}}}{b c - a d}\right ) - {\left (b d x + 4 \, b c - 3 \, a d\right )} \sqrt {d x + c}\right )}}{3 \, b^{2}}\right ] \]
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Time = 1.32 (sec) , antiderivative size = 105, normalized size of antiderivative = 1.22 \[ \int \frac {(c+d x)^{3/2}}{a+b x} \, dx=\begin {cases} \frac {2 \left (\frac {d \left (c + d x\right )^{\frac {3}{2}}}{3 b} + \frac {\sqrt {c + d x} \left (- a d^{2} + b c d\right )}{b^{2}} + \frac {d \left (a d - b c\right )^{2} \operatorname {atan}{\left (\frac {\sqrt {c + d x}}{\sqrt {\frac {a d - b c}{b}}} \right )}}{b^{3} \sqrt {\frac {a d - b c}{b}}}\right )}{d} & \text {for}\: d \neq 0 \\c^{\frac {3}{2}} \left (\begin {cases} \frac {x}{a} & \text {for}\: b = 0 \\\frac {\log {\left (a + b x \right )}}{b} & \text {otherwise} \end {cases}\right ) & \text {otherwise} \end {cases} \]
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Exception generated. \[ \int \frac {(c+d x)^{3/2}}{a+b x} \, dx=\text {Exception raised: ValueError} \]
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Time = 0.31 (sec) , antiderivative size = 105, normalized size of antiderivative = 1.22 \[ \int \frac {(c+d x)^{3/2}}{a+b x} \, dx=\frac {2 \, {\left (b^{2} c^{2} - 2 \, a b c d + a^{2} d^{2}\right )} \arctan \left (\frac {\sqrt {d x + c} b}{\sqrt {-b^{2} c + a b d}}\right )}{\sqrt {-b^{2} c + a b d} b^{2}} + \frac {2 \, {\left ({\left (d x + c\right )}^{\frac {3}{2}} b^{2} + 3 \, \sqrt {d x + c} b^{2} c - 3 \, \sqrt {d x + c} a b d\right )}}{3 \, b^{3}} \]
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Time = 0.09 (sec) , antiderivative size = 93, normalized size of antiderivative = 1.08 \[ \int \frac {(c+d x)^{3/2}}{a+b x} \, dx=\frac {2\,{\left (c+d\,x\right )}^{3/2}}{3\,b}-\frac {2\,\left (a\,d-b\,c\right )\,\sqrt {c+d\,x}}{b^2}+\frac {2\,\mathrm {atan}\left (\frac {\sqrt {b}\,{\left (a\,d-b\,c\right )}^{3/2}\,\sqrt {c+d\,x}}{a^2\,d^2-2\,a\,b\,c\,d+b^2\,c^2}\right )\,{\left (a\,d-b\,c\right )}^{3/2}}{b^{5/2}} \]
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