Integrand size = 18, antiderivative size = 41 \[ \int \frac {a+b x}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {a}{8 c^2 x^7 \sqrt {c x^2}}-\frac {b}{7 c^2 x^6 \sqrt {c x^2}} \]
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Time = 0.01 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {15, 45} \[ \int \frac {a+b x}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {a}{8 c^2 x^7 \sqrt {c x^2}}-\frac {b}{7 c^2 x^6 \sqrt {c x^2}} \]
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Rule 15
Rule 45
Rubi steps \begin{align*} \text {integral}& = \frac {x \int \frac {a+b x}{x^9} \, dx}{c^2 \sqrt {c x^2}} \\ & = \frac {x \int \left (\frac {a}{x^9}+\frac {b}{x^8}\right ) \, dx}{c^2 \sqrt {c x^2}} \\ & = -\frac {a}{8 c^2 x^7 \sqrt {c x^2}}-\frac {b}{7 c^2 x^6 \sqrt {c x^2}} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.59 \[ \int \frac {a+b x}{x^4 \left (c x^2\right )^{5/2}} \, dx=\frac {-7 a-8 b x}{56 x^3 \left (c x^2\right )^{5/2}} \]
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Time = 0.05 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.51
method | result | size |
gosper | \(-\frac {8 b x +7 a}{56 x^{3} \left (c \,x^{2}\right )^{\frac {5}{2}}}\) | \(21\) |
default | \(-\frac {8 b x +7 a}{56 x^{3} \left (c \,x^{2}\right )^{\frac {5}{2}}}\) | \(21\) |
risch | \(\frac {-\frac {b x}{7}-\frac {a}{8}}{c^{2} x^{7} \sqrt {c \,x^{2}}}\) | \(23\) |
trager | \(\frac {\left (-1+x \right ) \left (7 a \,x^{7}+8 b \,x^{7}+7 a \,x^{6}+8 b \,x^{6}+7 a \,x^{5}+8 b \,x^{5}+7 a \,x^{4}+8 b \,x^{4}+7 a \,x^{3}+8 b \,x^{3}+7 a \,x^{2}+8 b \,x^{2}+7 a x +8 b x +7 a \right ) \sqrt {c \,x^{2}}}{56 c^{3} x^{9}}\) | \(103\) |
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none
Time = 0.22 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.56 \[ \int \frac {a+b x}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {\sqrt {c x^{2}} {\left (8 \, b x + 7 \, a\right )}}{56 \, c^{3} x^{9}} \]
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Time = 0.78 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.76 \[ \int \frac {a+b x}{x^4 \left (c x^2\right )^{5/2}} \, dx=- \frac {a}{8 x^{3} \left (c x^{2}\right )^{\frac {5}{2}}} - \frac {b}{7 x^{2} \left (c x^{2}\right )^{\frac {5}{2}}} \]
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none
Time = 0.22 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.46 \[ \int \frac {a+b x}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {b}{7 \, c^{\frac {5}{2}} x^{7}} - \frac {a}{8 \, c^{\frac {5}{2}} x^{8}} \]
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Time = 0.30 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.49 \[ \int \frac {a+b x}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {8 \, b x + 7 \, a}{56 \, c^{\frac {5}{2}} x^{8} \mathrm {sgn}\left (x\right )} \]
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Time = 0.17 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.63 \[ \int \frac {a+b x}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {7\,a\,\sqrt {x^2}+8\,b\,x\,\sqrt {x^2}}{56\,c^{5/2}\,x^9} \]
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