Integrand size = 16, antiderivative size = 18 \[ \int \frac {\cos ^5(x)}{a-a \sin ^2(x)} \, dx=\frac {\sin (x)}{a}-\frac {\sin ^3(x)}{3 a} \]
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Time = 0.05 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {3254, 2713} \[ \int \frac {\cos ^5(x)}{a-a \sin ^2(x)} \, dx=\frac {\sin (x)}{a}-\frac {\sin ^3(x)}{3 a} \]
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Rule 2713
Rule 3254
Rubi steps \begin{align*} \text {integral}& = \frac {\int \cos ^3(x) \, dx}{a} \\ & = -\frac {\text {Subst}\left (\int \left (1-x^2\right ) \, dx,x,-\sin (x)\right )}{a} \\ & = \frac {\sin (x)}{a}-\frac {\sin ^3(x)}{3 a} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.83 \[ \int \frac {\cos ^5(x)}{a-a \sin ^2(x)} \, dx=\frac {\sin (x)-\frac {\sin ^3(x)}{3}}{a} \]
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Time = 0.32 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.78
method | result | size |
derivativedivides | \(\frac {-\frac {\left (\sin ^{3}\left (x \right )\right )}{3}+\sin \left (x \right )}{a}\) | \(14\) |
default | \(\frac {-\frac {\left (\sin ^{3}\left (x \right )\right )}{3}+\sin \left (x \right )}{a}\) | \(14\) |
parallelrisch | \(\frac {9 \sin \left (x \right )+\sin \left (3 x \right )}{12 a}\) | \(15\) |
risch | \(\frac {3 \sin \left (x \right )}{4 a}+\frac {\sin \left (3 x \right )}{12 a}\) | \(18\) |
norman | \(\frac {-\frac {2 \tan \left (\frac {x}{2}\right )}{a}-\frac {10 \left (\tan ^{3}\left (\frac {x}{2}\right )\right )}{3 a}-\frac {4 \left (\tan ^{5}\left (\frac {x}{2}\right )\right )}{3 a}+\frac {4 \left (\tan ^{7}\left (\frac {x}{2}\right )\right )}{3 a}+\frac {10 \left (\tan ^{9}\left (\frac {x}{2}\right )\right )}{3 a}+\frac {2 \left (\tan ^{11}\left (\frac {x}{2}\right )\right )}{a}}{\left (1+\tan ^{2}\left (\frac {x}{2}\right )\right )^{5} \left (\tan ^{2}\left (\frac {x}{2}\right )-1\right )}\) | \(87\) |
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none
Time = 0.28 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.72 \[ \int \frac {\cos ^5(x)}{a-a \sin ^2(x)} \, dx=\frac {{\left (\cos \left (x\right )^{2} + 2\right )} \sin \left (x\right )}{3 \, a} \]
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Leaf count of result is larger than twice the leaf count of optimal. 124 vs. \(2 (12) = 24\).
Time = 2.59 (sec) , antiderivative size = 124, normalized size of antiderivative = 6.89 \[ \int \frac {\cos ^5(x)}{a-a \sin ^2(x)} \, dx=\frac {6 \tan ^{5}{\left (\frac {x}{2} \right )}}{3 a \tan ^{6}{\left (\frac {x}{2} \right )} + 9 a \tan ^{4}{\left (\frac {x}{2} \right )} + 9 a \tan ^{2}{\left (\frac {x}{2} \right )} + 3 a} + \frac {4 \tan ^{3}{\left (\frac {x}{2} \right )}}{3 a \tan ^{6}{\left (\frac {x}{2} \right )} + 9 a \tan ^{4}{\left (\frac {x}{2} \right )} + 9 a \tan ^{2}{\left (\frac {x}{2} \right )} + 3 a} + \frac {6 \tan {\left (\frac {x}{2} \right )}}{3 a \tan ^{6}{\left (\frac {x}{2} \right )} + 9 a \tan ^{4}{\left (\frac {x}{2} \right )} + 9 a \tan ^{2}{\left (\frac {x}{2} \right )} + 3 a} \]
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none
Time = 0.24 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.78 \[ \int \frac {\cos ^5(x)}{a-a \sin ^2(x)} \, dx=-\frac {\sin \left (x\right )^{3} - 3 \, \sin \left (x\right )}{3 \, a} \]
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none
Time = 0.31 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.78 \[ \int \frac {\cos ^5(x)}{a-a \sin ^2(x)} \, dx=-\frac {\sin \left (x\right )^{3} - 3 \, \sin \left (x\right )}{3 \, a} \]
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Time = 0.04 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.89 \[ \int \frac {\cos ^5(x)}{a-a \sin ^2(x)} \, dx=\frac {3\,\sin \left (x\right )-{\sin \left (x\right )}^3}{3\,a} \]
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