Integrand size = 20, antiderivative size = 14 \[ \int \frac {1}{\left (\frac {b c}{d}+b x\right ) (c+d x)^3} \, dx=-\frac {1}{3 b (c+d x)^3} \]
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Time = 0.00 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {21, 32} \[ \int \frac {1}{\left (\frac {b c}{d}+b x\right ) (c+d x)^3} \, dx=-\frac {1}{3 b (c+d x)^3} \]
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Rule 21
Rule 32
Rubi steps \begin{align*} \text {integral}& = \frac {d \int \frac {1}{(c+d x)^4} \, dx}{b} \\ & = -\frac {1}{3 b (c+d x)^3} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.00 \[ \int \frac {1}{\left (\frac {b c}{d}+b x\right ) (c+d x)^3} \, dx=-\frac {1}{3 b (c+d x)^3} \]
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Time = 0.16 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.93
method | result | size |
gosper | \(-\frac {1}{3 b \left (d x +c \right )^{3}}\) | \(13\) |
default | \(-\frac {1}{3 b \left (d x +c \right )^{3}}\) | \(13\) |
norman | \(-\frac {1}{3 b \left (d x +c \right )^{3}}\) | \(13\) |
risch | \(-\frac {1}{3 b \left (d x +c \right )^{3}}\) | \(13\) |
parallelrisch | \(-\frac {1}{3 b \left (d x +c \right )^{3}}\) | \(13\) |
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Leaf count of result is larger than twice the leaf count of optimal. 36 vs. \(2 (12) = 24\).
Time = 0.21 (sec) , antiderivative size = 36, normalized size of antiderivative = 2.57 \[ \int \frac {1}{\left (\frac {b c}{d}+b x\right ) (c+d x)^3} \, dx=-\frac {1}{3 \, {\left (b d^{3} x^{3} + 3 \, b c d^{2} x^{2} + 3 \, b c^{2} d x + b c^{3}\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 44 vs. \(2 (12) = 24\).
Time = 0.40 (sec) , antiderivative size = 44, normalized size of antiderivative = 3.14 \[ \int \frac {1}{\left (\frac {b c}{d}+b x\right ) (c+d x)^3} \, dx=- \frac {d}{3 b c^{3} d + 9 b c^{2} d^{2} x + 9 b c d^{3} x^{2} + 3 b d^{4} x^{3}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 36 vs. \(2 (12) = 24\).
Time = 0.20 (sec) , antiderivative size = 36, normalized size of antiderivative = 2.57 \[ \int \frac {1}{\left (\frac {b c}{d}+b x\right ) (c+d x)^3} \, dx=-\frac {1}{3 \, {\left (b d^{3} x^{3} + 3 \, b c d^{2} x^{2} + 3 \, b c^{2} d x + b c^{3}\right )}} \]
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none
Time = 0.29 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.86 \[ \int \frac {1}{\left (\frac {b c}{d}+b x\right ) (c+d x)^3} \, dx=-\frac {1}{3 \, {\left (d x + c\right )}^{3} b} \]
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Time = 0.05 (sec) , antiderivative size = 38, normalized size of antiderivative = 2.71 \[ \int \frac {1}{\left (\frac {b c}{d}+b x\right ) (c+d x)^3} \, dx=-\frac {1}{3\,b\,c^3+9\,b\,c^2\,d\,x+9\,b\,c\,d^2\,x^2+3\,b\,d^3\,x^3} \]
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