Integrand size = 25, antiderivative size = 81 \[ \int \frac {1}{(a-i a x)^{7/4} (a+i a x)^{7/4}} \, dx=\frac {2 x}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}}+\frac {2 \left (1+x^2\right )^{3/4} \operatorname {EllipticF}\left (\frac {\arctan (x)}{2},2\right )}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}} \]
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Time = 0.01 (sec) , antiderivative size = 81, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.160, Rules used = {42, 205, 239, 237} \[ \int \frac {1}{(a-i a x)^{7/4} (a+i a x)^{7/4}} \, dx=\frac {2 \left (x^2+1\right )^{3/4} \operatorname {EllipticF}\left (\frac {\arctan (x)}{2},2\right )}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}}+\frac {2 x}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}} \]
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Rule 42
Rule 205
Rule 237
Rule 239
Rubi steps \begin{align*} \text {integral}& = \frac {\left (a^2+a^2 x^2\right )^{3/4} \int \frac {1}{\left (a^2+a^2 x^2\right )^{7/4}} \, dx}{(a-i a x)^{3/4} (a+i a x)^{3/4}} \\ & = \frac {2 x}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}}+\frac {\left (a^2+a^2 x^2\right )^{3/4} \int \frac {1}{\left (a^2+a^2 x^2\right )^{3/4}} \, dx}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}} \\ & = \frac {2 x}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}}+\frac {\left (1+x^2\right )^{3/4} \int \frac {1}{\left (1+x^2\right )^{3/4}} \, dx}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}} \\ & = \frac {2 x}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}}+\frac {2 \left (1+x^2\right )^{3/4} F\left (\left .\frac {1}{2} \tan ^{-1}(x)\right |2\right )}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}} \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.
Time = 0.02 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.86 \[ \int \frac {1}{(a-i a x)^{7/4} (a+i a x)^{7/4}} \, dx=-\frac {i \sqrt [4]{2} (1+i x)^{3/4} \operatorname {Hypergeometric2F1}\left (-\frac {3}{4},\frac {7}{4},\frac {1}{4},\frac {1}{2}-\frac {i x}{2}\right )}{3 a^2 (a-i a x)^{3/4} (a+i a x)^{3/4}} \]
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\[\int \frac {1}{\left (-i a x +a \right )^{\frac {7}{4}} \left (i a x +a \right )^{\frac {7}{4}}}d x\]
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\[ \int \frac {1}{(a-i a x)^{7/4} (a+i a x)^{7/4}} \, dx=\int { \frac {1}{{\left (i \, a x + a\right )}^{\frac {7}{4}} {\left (-i \, a x + a\right )}^{\frac {7}{4}}} \,d x } \]
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Time = 19.00 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.17 \[ \int \frac {1}{(a-i a x)^{7/4} (a+i a x)^{7/4}} \, dx=- \frac {i {G_{6, 6}^{5, 3}\left (\begin {matrix} \frac {7}{8}, \frac {11}{8}, 1 & \frac {1}{2}, \frac {7}{4}, \frac {9}{4} \\\frac {7}{8}, \frac {5}{4}, \frac {11}{8}, \frac {7}{4}, \frac {9}{4} & 0 \end {matrix} \middle | {\frac {e^{- 3 i \pi }}{x^{2}}} \right )} e^{- \frac {i \pi }{4}}}{4 \pi a^{\frac {7}{2}} \Gamma \left (\frac {7}{4}\right )} + \frac {i {G_{6, 6}^{2, 6}\left (\begin {matrix} - \frac {1}{2}, 0, \frac {3}{8}, \frac {1}{2}, \frac {7}{8}, 1 & \\\frac {3}{8}, \frac {7}{8} & - \frac {1}{2}, 0, \frac {5}{4}, 0 \end {matrix} \middle | {\frac {e^{- i \pi }}{x^{2}}} \right )}}{4 \pi a^{\frac {7}{2}} \Gamma \left (\frac {7}{4}\right )} \]
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\[ \int \frac {1}{(a-i a x)^{7/4} (a+i a x)^{7/4}} \, dx=\int { \frac {1}{{\left (i \, a x + a\right )}^{\frac {7}{4}} {\left (-i \, a x + a\right )}^{\frac {7}{4}}} \,d x } \]
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Exception generated. \[ \int \frac {1}{(a-i a x)^{7/4} (a+i a x)^{7/4}} \, dx=\text {Exception raised: TypeError} \]
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Timed out. \[ \int \frac {1}{(a-i a x)^{7/4} (a+i a x)^{7/4}} \, dx=\int \frac {1}{{\left (a-a\,x\,1{}\mathrm {i}\right )}^{7/4}\,{\left (a+a\,x\,1{}\mathrm {i}\right )}^{7/4}} \,d x \]
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