Integrand size = 15, antiderivative size = 39 \[ \int \frac {1}{x^{3/2} (a+b x)^{3/2}} \, dx=\frac {2}{a \sqrt {x} \sqrt {a+b x}}-\frac {4 \sqrt {a+b x}}{a^2 \sqrt {x}} \]
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Time = 0.00 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {47, 37} \[ \int \frac {1}{x^{3/2} (a+b x)^{3/2}} \, dx=\frac {2}{a \sqrt {x} \sqrt {a+b x}}-\frac {4 \sqrt {a+b x}}{a^2 \sqrt {x}} \]
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Rule 37
Rule 47
Rubi steps \begin{align*} \text {integral}& = \frac {2}{a \sqrt {x} \sqrt {a+b x}}+\frac {2 \int \frac {1}{x^{3/2} \sqrt {a+b x}} \, dx}{a} \\ & = \frac {2}{a \sqrt {x} \sqrt {a+b x}}-\frac {4 \sqrt {a+b x}}{a^2 \sqrt {x}} \\ \end{align*}
Time = 0.06 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.64 \[ \int \frac {1}{x^{3/2} (a+b x)^{3/2}} \, dx=-\frac {2 (a+2 b x)}{a^2 \sqrt {x} \sqrt {a+b x}} \]
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Time = 0.23 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.56
method | result | size |
gosper | \(-\frac {2 \left (2 b x +a \right )}{\sqrt {x}\, \sqrt {b x +a}\, a^{2}}\) | \(22\) |
default | \(-\frac {2}{a \sqrt {x}\, \sqrt {b x +a}}-\frac {4 b \sqrt {x}}{a^{2} \sqrt {b x +a}}\) | \(33\) |
risch | \(-\frac {2 \sqrt {b x +a}}{a^{2} \sqrt {x}}-\frac {2 b \sqrt {x}}{a^{2} \sqrt {b x +a}}\) | \(33\) |
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none
Time = 0.22 (sec) , antiderivative size = 34, normalized size of antiderivative = 0.87 \[ \int \frac {1}{x^{3/2} (a+b x)^{3/2}} \, dx=-\frac {2 \, {\left (2 \, b x + a\right )} \sqrt {b x + a} \sqrt {x}}{a^{2} b x^{2} + a^{3} x} \]
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Time = 0.81 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.05 \[ \int \frac {1}{x^{3/2} (a+b x)^{3/2}} \, dx=- \frac {2}{a \sqrt {b} x \sqrt {\frac {a}{b x} + 1}} - \frac {4 \sqrt {b}}{a^{2} \sqrt {\frac {a}{b x} + 1}} \]
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none
Time = 0.21 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.82 \[ \int \frac {1}{x^{3/2} (a+b x)^{3/2}} \, dx=-\frac {2 \, b \sqrt {x}}{\sqrt {b x + a} a^{2}} - \frac {2 \, \sqrt {b x + a}}{a^{2} \sqrt {x}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 82 vs. \(2 (31) = 62\).
Time = 0.31 (sec) , antiderivative size = 82, normalized size of antiderivative = 2.10 \[ \int \frac {1}{x^{3/2} (a+b x)^{3/2}} \, dx=-\frac {4 \, b^{\frac {5}{2}}}{{\left ({\left (\sqrt {b x + a} \sqrt {b} - \sqrt {{\left (b x + a\right )} b - a b}\right )}^{2} + a b\right )} a {\left | b \right |}} - \frac {2 \, \sqrt {b x + a} b^{2}}{\sqrt {{\left (b x + a\right )} b - a b} a^{2} {\left | b \right |}} \]
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Time = 0.47 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.00 \[ \int \frac {1}{x^{3/2} (a+b x)^{3/2}} \, dx=-\frac {2\,a\,\sqrt {a+b\,x}+4\,b\,x\,\sqrt {a+b\,x}}{\sqrt {x}\,\left (a^3+b\,x\,a^2\right )} \]
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