Integrand size = 24, antiderivative size = 67 \[ \int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^6} \, dx=-\frac {\left (a^2-b^2 x^2\right )^{5/2}}{7 a b (a+b x)^6}-\frac {\left (a^2-b^2 x^2\right )^{5/2}}{35 a^2 b (a+b x)^5} \]
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Time = 0.01 (sec) , antiderivative size = 67, 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, 665} \[ \int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^6} \, dx=-\frac {\left (a^2-b^2 x^2\right )^{5/2}}{35 a^2 b (a+b x)^5}-\frac {\left (a^2-b^2 x^2\right )^{5/2}}{7 a b (a+b x)^6} \]
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Rule 665
Rule 673
Rubi steps \begin{align*} \text {integral}& = -\frac {\left (a^2-b^2 x^2\right )^{5/2}}{7 a b (a+b x)^6}+\frac {\int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^5} \, dx}{7 a} \\ & = -\frac {\left (a^2-b^2 x^2\right )^{5/2}}{7 a b (a+b x)^6}-\frac {\left (a^2-b^2 x^2\right )^{5/2}}{35 a^2 b (a+b x)^5} \\ \end{align*}
Time = 0.51 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.72 \[ \int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^6} \, dx=-\frac {(a-b x)^2 (6 a+b x) \sqrt {a^2-b^2 x^2}}{35 a^2 b (a+b x)^4} \]
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Time = 2.51 (sec) , antiderivative size = 43, normalized size of antiderivative = 0.64
method | result | size |
gosper | \(-\frac {\left (-b x +a \right ) \left (b x +6 a \right ) \left (-b^{2} x^{2}+a^{2}\right )^{\frac {3}{2}}}{35 \left (b x +a \right )^{5} a^{2} b}\) | \(43\) |
trager | \(-\frac {\left (b^{3} x^{3}+4 a \,b^{2} x^{2}-11 a^{2} b x +6 a^{3}\right ) \sqrt {-b^{2} x^{2}+a^{2}}}{35 a^{2} \left (b x +a \right )^{4} b}\) | \(59\) |
default | \(\frac {-\frac {\left (-b^{2} \left (x +\frac {a}{b}\right )^{2}+2 a b \left (x +\frac {a}{b}\right )\right )^{\frac {5}{2}}}{7 a b \left (x +\frac {a}{b}\right )^{6}}-\frac {\left (-b^{2} \left (x +\frac {a}{b}\right )^{2}+2 a b \left (x +\frac {a}{b}\right )\right )^{\frac {5}{2}}}{35 a^{2} \left (x +\frac {a}{b}\right )^{5}}}{b^{6}}\) | \(93\) |
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Leaf count of result is larger than twice the leaf count of optimal. 136 vs. \(2 (59) = 118\).
Time = 0.28 (sec) , antiderivative size = 136, normalized size of antiderivative = 2.03 \[ \int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^6} \, dx=-\frac {6 \, b^{4} x^{4} + 24 \, a b^{3} x^{3} + 36 \, a^{2} b^{2} x^{2} + 24 \, a^{3} b x + 6 \, a^{4} + {\left (b^{3} x^{3} + 4 \, a b^{2} x^{2} - 11 \, a^{2} b x + 6 \, a^{3}\right )} \sqrt {-b^{2} x^{2} + a^{2}}}{35 \, {\left (a^{2} b^{5} x^{4} + 4 \, a^{3} b^{4} x^{3} + 6 \, a^{4} b^{3} x^{2} + 4 \, a^{5} b^{2} x + a^{6} b\right )}} \]
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\[ \int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^6} \, dx=\int \frac {\left (- \left (- a + b x\right ) \left (a + b x\right )\right )^{\frac {3}{2}}}{\left (a + b x\right )^{6}}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 255 vs. \(2 (59) = 118\).
Time = 0.22 (sec) , antiderivative size = 255, normalized size of antiderivative = 3.81 \[ \int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^6} \, dx=-\frac {{\left (-b^{2} x^{2} + a^{2}\right )}^{\frac {3}{2}}}{2 \, {\left (b^{6} x^{5} + 5 \, a b^{5} x^{4} + 10 \, a^{2} b^{4} x^{3} + 10 \, a^{3} b^{3} x^{2} + 5 \, a^{4} b^{2} x + a^{5} b\right )}} + \frac {3 \, \sqrt {-b^{2} x^{2} + a^{2}} a}{7 \, {\left (b^{5} x^{4} + 4 \, a b^{4} x^{3} + 6 \, a^{2} b^{3} x^{2} + 4 \, a^{3} b^{2} x + a^{4} b\right )}} - \frac {3 \, \sqrt {-b^{2} x^{2} + a^{2}}}{70 \, {\left (b^{4} x^{3} + 3 \, a b^{3} x^{2} + 3 \, a^{2} b^{2} x + a^{3} b\right )}} - \frac {\sqrt {-b^{2} x^{2} + a^{2}}}{35 \, {\left (a b^{3} x^{2} + 2 \, a^{2} b^{2} x + a^{3} b\right )}} - \frac {\sqrt {-b^{2} x^{2} + a^{2}}}{35 \, {\left (a^{2} b^{2} x + a^{3} b\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 227 vs. \(2 (59) = 118\).
Time = 0.29 (sec) , antiderivative size = 227, normalized size of antiderivative = 3.39 \[ \int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^6} \, dx=\frac {2 \, {\left (\frac {7 \, {\left (a b + \sqrt {-b^{2} x^{2} + a^{2}} {\left | b \right |}\right )}}{b^{2} x} + \frac {91 \, {\left (a b + \sqrt {-b^{2} x^{2} + a^{2}} {\left | b \right |}\right )}^{2}}{b^{4} x^{2}} + \frac {70 \, {\left (a b + \sqrt {-b^{2} x^{2} + a^{2}} {\left | b \right |}\right )}^{3}}{b^{6} x^{3}} + \frac {140 \, {\left (a b + \sqrt {-b^{2} x^{2} + a^{2}} {\left | b \right |}\right )}^{4}}{b^{8} x^{4}} + \frac {35 \, {\left (a b + \sqrt {-b^{2} x^{2} + a^{2}} {\left | b \right |}\right )}^{5}}{b^{10} x^{5}} + \frac {35 \, {\left (a b + \sqrt {-b^{2} x^{2} + a^{2}} {\left | b \right |}\right )}^{6}}{b^{12} x^{6}} + 6\right )}}{35 \, a^{2} {\left (\frac {a b + \sqrt {-b^{2} x^{2} + a^{2}} {\left | b \right |}}{b^{2} x} + 1\right )}^{7} {\left | b \right |}} \]
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Time = 10.53 (sec) , antiderivative size = 112, normalized size of antiderivative = 1.67 \[ \int \frac {\left (a^2-b^2 x^2\right )^{3/2}}{(a+b x)^6} \, dx=\frac {16\,\sqrt {a^2-b^2\,x^2}}{35\,b\,{\left (a+b\,x\right )}^3}-\frac {4\,a\,\sqrt {a^2-b^2\,x^2}}{7\,b\,{\left (a+b\,x\right )}^4}-\frac {\sqrt {a^2-b^2\,x^2}}{35\,a\,b\,{\left (a+b\,x\right )}^2}-\frac {\sqrt {a^2-b^2\,x^2}}{35\,a^2\,b\,\left (a+b\,x\right )} \]
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