Integrand size = 24, antiderivative size = 58 \[ \int \frac {1}{(d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\frac {2 x}{3 d^3 \sqrt {d^2-e^2 x^2}}-\frac {1}{3 d e (d+e x) \sqrt {d^2-e^2 x^2}} \]
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Time = 0.01 (sec) , antiderivative size = 58, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {673, 197} \[ \int \frac {1}{(d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\frac {2 x}{3 d^3 \sqrt {d^2-e^2 x^2}}-\frac {1}{3 d e (d+e x) \sqrt {d^2-e^2 x^2}} \]
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Rule 197
Rule 673
Rubi steps \begin{align*} \text {integral}& = -\frac {1}{3 d e (d+e x) \sqrt {d^2-e^2 x^2}}+\frac {2 \int \frac {1}{\left (d^2-e^2 x^2\right )^{3/2}} \, dx}{3 d} \\ & = \frac {2 x}{3 d^3 \sqrt {d^2-e^2 x^2}}-\frac {1}{3 d e (d+e x) \sqrt {d^2-e^2 x^2}} \\ \end{align*}
Time = 0.22 (sec) , antiderivative size = 60, normalized size of antiderivative = 1.03 \[ \int \frac {1}{(d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\frac {\sqrt {d^2-e^2 x^2} \left (-d^2+2 d e x+2 e^2 x^2\right )}{3 d^3 e (d-e x) (d+e x)^2} \]
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Time = 0.38 (sec) , antiderivative size = 46, normalized size of antiderivative = 0.79
method | result | size |
gosper | \(-\frac {\left (-e x +d \right ) \left (-2 e^{2} x^{2}-2 d e x +d^{2}\right )}{3 d^{3} e \left (-e^{2} x^{2}+d^{2}\right )^{\frac {3}{2}}}\) | \(46\) |
trager | \(-\frac {\left (-2 e^{2} x^{2}-2 d e x +d^{2}\right ) \sqrt {-e^{2} x^{2}+d^{2}}}{3 d^{3} \left (e x +d \right )^{2} e \left (-e x +d \right )}\) | \(55\) |
default | \(\frac {-\frac {1}{3 d e \left (x +\frac {d}{e}\right ) \sqrt {-\left (x +\frac {d}{e}\right )^{2} e^{2}+2 d e \left (x +\frac {d}{e}\right )}}-\frac {-2 \left (x +\frac {d}{e}\right ) e^{2}+2 d e}{3 e \,d^{3} \sqrt {-\left (x +\frac {d}{e}\right )^{2} e^{2}+2 d e \left (x +\frac {d}{e}\right )}}}{e}\) | \(104\) |
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Leaf count of result is larger than twice the leaf count of optimal. 102 vs. \(2 (50) = 100\).
Time = 0.34 (sec) , antiderivative size = 102, normalized size of antiderivative = 1.76 \[ \int \frac {1}{(d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=-\frac {e^{3} x^{3} + d e^{2} x^{2} - d^{2} e x - d^{3} + {\left (2 \, e^{2} x^{2} + 2 \, d e x - d^{2}\right )} \sqrt {-e^{2} x^{2} + d^{2}}}{3 \, {\left (d^{3} e^{4} x^{3} + d^{4} e^{3} x^{2} - d^{5} e^{2} x - d^{6} e\right )}} \]
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\[ \int \frac {1}{(d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\int \frac {1}{\left (- \left (- d + e x\right ) \left (d + e x\right )\right )^{\frac {3}{2}} \left (d + e x\right )}\, dx \]
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none
Time = 0.20 (sec) , antiderivative size = 65, normalized size of antiderivative = 1.12 \[ \int \frac {1}{(d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=-\frac {1}{3 \, {\left (\sqrt {-e^{2} x^{2} + d^{2}} d e^{2} x + \sqrt {-e^{2} x^{2} + d^{2}} d^{2} e\right )}} + \frac {2 \, x}{3 \, \sqrt {-e^{2} x^{2} + d^{2}} d^{3}} \]
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\[ \int \frac {1}{(d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\int { \frac {1}{{\left (-e^{2} x^{2} + d^{2}\right )}^{\frac {3}{2}} {\left (e x + d\right )}} \,d x } \]
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Time = 11.69 (sec) , antiderivative size = 56, normalized size of antiderivative = 0.97 \[ \int \frac {1}{(d+e x) \left (d^2-e^2 x^2\right )^{3/2}} \, dx=\frac {\sqrt {d^2-e^2\,x^2}\,\left (-d^2+2\,d\,e\,x+2\,e^2\,x^2\right )}{3\,d^3\,e\,{\left (d+e\,x\right )}^2\,\left (d-e\,x\right )} \]
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