Integrand size = 11, antiderivative size = 40 \[ \int e^{\frac {e}{(c+d x)^3}} \, dx=\frac {\sqrt [3]{-\frac {e}{(c+d x)^3}} (c+d x) \Gamma \left (-\frac {1}{3},-\frac {e}{(c+d x)^3}\right )}{3 d} \]
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Time = 0.00 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {2239} \[ \int e^{\frac {e}{(c+d x)^3}} \, dx=\frac {(c+d x) \sqrt [3]{-\frac {e}{(c+d x)^3}} \Gamma \left (-\frac {1}{3},-\frac {e}{(c+d x)^3}\right )}{3 d} \]
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Rule 2239
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt [3]{-\frac {e}{(c+d x)^3}} (c+d x) \Gamma \left (-\frac {1}{3},-\frac {e}{(c+d x)^3}\right )}{3 d} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.00 \[ \int e^{\frac {e}{(c+d x)^3}} \, dx=\frac {\sqrt [3]{-\frac {e}{(c+d x)^3}} (c+d x) \Gamma \left (-\frac {1}{3},-\frac {e}{(c+d x)^3}\right )}{3 d} \]
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\[\int {\mathrm e}^{\frac {e}{\left (d x +c \right )^{3}}}d x\]
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Leaf count of result is larger than twice the leaf count of optimal. 89 vs. \(2 (34) = 68\).
Time = 0.12 (sec) , antiderivative size = 89, normalized size of antiderivative = 2.22 \[ \int e^{\frac {e}{(c+d x)^3}} \, dx=-\frac {d \left (-\frac {e}{d^{3}}\right )^{\frac {1}{3}} \Gamma \left (\frac {2}{3}, -\frac {e}{d^{3} x^{3} + 3 \, c d^{2} x^{2} + 3 \, c^{2} d x + c^{3}}\right ) - {\left (d x + c\right )} e^{\left (\frac {e}{d^{3} x^{3} + 3 \, c d^{2} x^{2} + 3 \, c^{2} d x + c^{3}}\right )}}{d} \]
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\[ \int e^{\frac {e}{(c+d x)^3}} \, dx=\int e^{\frac {e}{\left (c + d x\right )^{3}}}\, dx \]
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\[ \int e^{\frac {e}{(c+d x)^3}} \, dx=\int { e^{\left (\frac {e}{{\left (d x + c\right )}^{3}}\right )} \,d x } \]
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\[ \int e^{\frac {e}{(c+d x)^3}} \, dx=\int { e^{\left (\frac {e}{{\left (d x + c\right )}^{3}}\right )} \,d x } \]
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Time = 0.67 (sec) , antiderivative size = 61, normalized size of antiderivative = 1.52 \[ \int e^{\frac {e}{(c+d x)^3}} \, dx=\frac {\left (c+d\,x\right )\,\left ({\mathrm {e}}^{\frac {e}{{\left (c+d\,x\right )}^3}}+\Gamma \left (\frac {2}{3}\right )\,{\left (-\frac {e}{{\left (c+d\,x\right )}^3}\right )}^{1/3}-{\left (-\frac {e}{{\left (c+d\,x\right )}^3}\right )}^{1/3}\,\Gamma \left (\frac {2}{3},-\frac {e}{{\left (c+d\,x\right )}^3}\right )\right )}{d} \]
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