Integrand size = 16, antiderivative size = 6 \[ \int \frac {\cos ^2(x)}{\left (a-a \sin ^2(x)\right )^2} \, dx=\frac {\tan (x)}{a^2} \]
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Time = 0.05 (sec) , antiderivative size = 6, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.188, Rules used = {3254, 3852, 8} \[ \int \frac {\cos ^2(x)}{\left (a-a \sin ^2(x)\right )^2} \, dx=\frac {\tan (x)}{a^2} \]
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Rule 8
Rule 3254
Rule 3852
Rubi steps \begin{align*} \text {integral}& = \frac {\int \sec ^2(x) \, dx}{a^2} \\ & = -\frac {\text {Subst}(\int 1 \, dx,x,-\tan (x))}{a^2} \\ & = \frac {\tan (x)}{a^2} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 6, normalized size of antiderivative = 1.00 \[ \int \frac {\cos ^2(x)}{\left (a-a \sin ^2(x)\right )^2} \, dx=\frac {\tan (x)}{a^2} \]
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Time = 0.40 (sec) , antiderivative size = 7, normalized size of antiderivative = 1.17
method | result | size |
default | \(\frac {\tan \left (x \right )}{a^{2}}\) | \(7\) |
parallelrisch | \(\frac {\tan \left (x \right )}{a^{2}}\) | \(7\) |
risch | \(\frac {2 i}{a^{2} \left ({\mathrm e}^{2 i x}+1\right )}\) | \(16\) |
norman | \(\frac {-\frac {2 \tan \left (\frac {x}{2}\right )}{a}+\frac {4 \left (\tan ^{5}\left (\frac {x}{2}\right )\right )}{a}-\frac {2 \left (\tan ^{9}\left (\frac {x}{2}\right )\right )}{a}}{a \left (1+\tan ^{2}\left (\frac {x}{2}\right )\right )^{2} \left (\tan ^{2}\left (\frac {x}{2}\right )-1\right )^{3}}\) | \(57\) |
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none
Time = 0.29 (sec) , antiderivative size = 10, normalized size of antiderivative = 1.67 \[ \int \frac {\cos ^2(x)}{\left (a-a \sin ^2(x)\right )^2} \, dx=\frac {\sin \left (x\right )}{a^{2} \cos \left (x\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 20 vs. \(2 (5) = 10\).
Time = 1.62 (sec) , antiderivative size = 20, normalized size of antiderivative = 3.33 \[ \int \frac {\cos ^2(x)}{\left (a-a \sin ^2(x)\right )^2} \, dx=- \frac {2 \tan {\left (\frac {x}{2} \right )}}{a^{2} \tan ^{2}{\left (\frac {x}{2} \right )} - a^{2}} \]
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none
Time = 0.36 (sec) , antiderivative size = 6, normalized size of antiderivative = 1.00 \[ \int \frac {\cos ^2(x)}{\left (a-a \sin ^2(x)\right )^2} \, dx=\frac {\tan \left (x\right )}{a^{2}} \]
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none
Time = 0.29 (sec) , antiderivative size = 6, normalized size of antiderivative = 1.00 \[ \int \frac {\cos ^2(x)}{\left (a-a \sin ^2(x)\right )^2} \, dx=\frac {\tan \left (x\right )}{a^{2}} \]
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Time = 13.89 (sec) , antiderivative size = 6, normalized size of antiderivative = 1.00 \[ \int \frac {\cos ^2(x)}{\left (a-a \sin ^2(x)\right )^2} \, dx=\frac {\mathrm {tan}\left (x\right )}{a^2} \]
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