Integrand size = 22, antiderivative size = 80 \[ \int (g x)^m \left (d^2-e^2 x^2\right )^{5/2} \, dx=\frac {d^4 (g x)^{1+m} \sqrt {d^2-e^2 x^2} \operatorname {Hypergeometric2F1}\left (-\frac {5}{2},\frac {1+m}{2},\frac {3+m}{2},\frac {e^2 x^2}{d^2}\right )}{g (1+m) \sqrt {1-\frac {e^2 x^2}{d^2}}} \]
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Time = 0.02 (sec) , antiderivative size = 80, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {372, 371} \[ \int (g x)^m \left (d^2-e^2 x^2\right )^{5/2} \, dx=\frac {d^4 \sqrt {d^2-e^2 x^2} (g x)^{m+1} \operatorname {Hypergeometric2F1}\left (-\frac {5}{2},\frac {m+1}{2},\frac {m+3}{2},\frac {e^2 x^2}{d^2}\right )}{g (m+1) \sqrt {1-\frac {e^2 x^2}{d^2}}} \]
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Rule 371
Rule 372
Rubi steps \begin{align*} \text {integral}& = \frac {\left (d^4 \sqrt {d^2-e^2 x^2}\right ) \int (g x)^m \left (1-\frac {e^2 x^2}{d^2}\right )^{5/2} \, dx}{\sqrt {1-\frac {e^2 x^2}{d^2}}} \\ & = \frac {d^4 (g x)^{1+m} \sqrt {d^2-e^2 x^2} \, _2F_1\left (-\frac {5}{2},\frac {1+m}{2};\frac {3+m}{2};\frac {e^2 x^2}{d^2}\right )}{g (1+m) \sqrt {1-\frac {e^2 x^2}{d^2}}} \\ \end{align*}
Time = 0.34 (sec) , antiderivative size = 78, normalized size of antiderivative = 0.98 \[ \int (g x)^m \left (d^2-e^2 x^2\right )^{5/2} \, dx=\frac {d^4 x (g x)^m \sqrt {d^2-e^2 x^2} \operatorname {Hypergeometric2F1}\left (-\frac {5}{2},\frac {1+m}{2},1+\frac {1+m}{2},\frac {e^2 x^2}{d^2}\right )}{(1+m) \sqrt {1-\frac {e^2 x^2}{d^2}}} \]
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\[\int \left (g x \right )^{m} \left (-e^{2} x^{2}+d^{2}\right )^{\frac {5}{2}}d x\]
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\[ \int (g x)^m \left (d^2-e^2 x^2\right )^{5/2} \, dx=\int { {\left (-e^{2} x^{2} + d^{2}\right )}^{\frac {5}{2}} \left (g x\right )^{m} \,d x } \]
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Result contains complex when optimal does not.
Time = 4.30 (sec) , antiderivative size = 61, normalized size of antiderivative = 0.76 \[ \int (g x)^m \left (d^2-e^2 x^2\right )^{5/2} \, dx=\frac {d^{5} g^{m} x^{m + 1} \Gamma \left (\frac {m}{2} + \frac {1}{2}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {5}{2}, \frac {m}{2} + \frac {1}{2} \\ \frac {m}{2} + \frac {3}{2} \end {matrix}\middle | {\frac {e^{2} x^{2} e^{2 i \pi }}{d^{2}}} \right )}}{2 \Gamma \left (\frac {m}{2} + \frac {3}{2}\right )} \]
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\[ \int (g x)^m \left (d^2-e^2 x^2\right )^{5/2} \, dx=\int { {\left (-e^{2} x^{2} + d^{2}\right )}^{\frac {5}{2}} \left (g x\right )^{m} \,d x } \]
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\[ \int (g x)^m \left (d^2-e^2 x^2\right )^{5/2} \, dx=\int { {\left (-e^{2} x^{2} + d^{2}\right )}^{\frac {5}{2}} \left (g x\right )^{m} \,d x } \]
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Timed out. \[ \int (g x)^m \left (d^2-e^2 x^2\right )^{5/2} \, dx=\int {\left (d^2-e^2\,x^2\right )}^{5/2}\,{\left (g\,x\right )}^m \,d x \]
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