Integrand size = 33, antiderivative size = 20 \[ \int \frac {\sec ^2(x) \tan (x) \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )}{\left (1-8 \tan ^2(x)\right )^{2/3}} \, dx=-\frac {3}{32} \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )^2 \]
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Time = 0.15 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.061, Rules used = {4427, 6818} \[ \int \frac {\sec ^2(x) \tan (x) \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )}{\left (1-8 \tan ^2(x)\right )^{2/3}} \, dx=-\frac {3}{32} \left (\sqrt [3]{1-8 \tan ^2(x)}+1\right )^2 \]
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Rule 4427
Rule 6818
Rubi steps \begin{align*} \text {integral}& = \text {Subst}\left (\int \frac {x \left (1+\sqrt [3]{1-8 x^2}\right )}{\left (1-8 x^2\right )^{2/3}} \, dx,x,\tan (x)\right ) \\ & = -\frac {3}{32} \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )^2 \\ \end{align*}
Time = 0.27 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.00 \[ \int \frac {\sec ^2(x) \tan (x) \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )}{\left (1-8 \tan ^2(x)\right )^{2/3}} \, dx=-\frac {3}{32} \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )^2 \]
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Time = 0.18 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.30
method | result | size |
derivativedivides | \(-\frac {3 {\left (1-8 \left (\tan ^{2}\left (x \right )\right )\right )}^{\frac {1}{3}}}{16}-\frac {3 {\left (1-8 \left (\tan ^{2}\left (x \right )\right )\right )}^{\frac {2}{3}}}{32}\) | \(26\) |
default | \(-\frac {3 {\left (1-8 \left (\tan ^{2}\left (x \right )\right )\right )}^{\frac {1}{3}}}{16}-\frac {3 {\left (1-8 \left (\tan ^{2}\left (x \right )\right )\right )}^{\frac {2}{3}}}{32}\) | \(26\) |
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Leaf count of result is larger than twice the leaf count of optimal. 35 vs. \(2 (16) = 32\).
Time = 0.27 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.75 \[ \int \frac {\sec ^2(x) \tan (x) \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )}{\left (1-8 \tan ^2(x)\right )^{2/3}} \, dx=-\frac {3}{32} \, \left (\frac {9 \, \cos \left (x\right )^{2} - 8}{\cos \left (x\right )^{2}}\right )^{\frac {2}{3}} - \frac {3}{16} \, \left (\frac {9 \, \cos \left (x\right )^{2} - 8}{\cos \left (x\right )^{2}}\right )^{\frac {1}{3}} \]
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\[ \int \frac {\sec ^2(x) \tan (x) \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )}{\left (1-8 \tan ^2(x)\right )^{2/3}} \, dx=\int \frac {\left (\sqrt [3]{1 - 8 \tan ^{2}{\left (x \right )}} + 1\right ) \tan {\left (x \right )}}{\left (1 - 8 \tan ^{2}{\left (x \right )}\right )^{\frac {2}{3}} \cos ^{2}{\left (x \right )}}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 86 vs. \(2 (16) = 32\).
Time = 0.26 (sec) , antiderivative size = 86, normalized size of antiderivative = 4.30 \[ \int \frac {\sec ^2(x) \tan (x) \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )}{\left (1-8 \tan ^2(x)\right )^{2/3}} \, dx=-\frac {3 \, {\left (\frac {{\left (9 \, \sin \left (x\right )^{2} - 1\right )} {\left (3 \, \sin \left (x\right ) - 1\right )}^{\frac {1}{3}} {\left (\sin \left (x\right ) + 1\right )}^{\frac {1}{3}} {\left (\sin \left (x\right ) - 1\right )}^{\frac {1}{3}}}{{\left (3 \, \sin \left (x\right ) + 1\right )}^{\frac {1}{3}}} + \frac {2 \, {\left (9 \, \sin \left (x\right )^{2} - 1\right )} {\left (\sin \left (x\right ) + 1\right )}^{\frac {2}{3}} {\left (\sin \left (x\right ) - 1\right )}^{\frac {2}{3}}}{{\left (3 \, \sin \left (x\right ) + 1\right )}^{\frac {2}{3}}}\right )}}{32 \, {\left (\sin \left (x\right )^{2} - 1\right )} {\left (3 \, \sin \left (x\right ) - 1\right )}^{\frac {2}{3}}} \]
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none
Time = 0.33 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.25 \[ \int \frac {\sec ^2(x) \tan (x) \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )}{\left (1-8 \tan ^2(x)\right )^{2/3}} \, dx=-\frac {3}{32} \, {\left (-8 \, \tan \left (x\right )^{2} + 1\right )}^{\frac {2}{3}} - \frac {3}{16} \, {\left (-8 \, \tan \left (x\right )^{2} + 1\right )}^{\frac {1}{3}} \]
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Time = 0.63 (sec) , antiderivative size = 43, normalized size of antiderivative = 2.15 \[ \int \frac {\sec ^2(x) \tan (x) \left (1+\sqrt [3]{1-8 \tan ^2(x)}\right )}{\left (1-8 \tan ^2(x)\right )^{2/3}} \, dx=-\frac {3\,\left ({\left (18\,{\cos \left (x\right )}^2-16\right )}^{1/3}+2\,{\left (2\,{\cos \left (x\right )}^2\right )}^{1/3}\right )\,{\left (18\,{\cos \left (x\right )}^2-16\right )}^{1/3}}{32\,{\left (2\,{\cos \left (x\right )}^2\right )}^{2/3}} \]
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