Integrand size = 23, antiderivative size = 74 \[ \int \frac {\tan ^4(c+d x)}{a+b \sin ^2(c+d x)} \, dx=\frac {a^{3/2} \arctan \left (\frac {\sqrt {a+b} \tan (c+d x)}{\sqrt {a}}\right )}{(a+b)^{5/2} d}-\frac {a \tan (c+d x)}{(a+b)^2 d}+\frac {\tan ^3(c+d x)}{3 (a+b) d} \]
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Time = 0.14 (sec) , antiderivative size = 74, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.130, Rules used = {3274, 308, 211} \[ \int \frac {\tan ^4(c+d x)}{a+b \sin ^2(c+d x)} \, dx=\frac {a^{3/2} \arctan \left (\frac {\sqrt {a+b} \tan (c+d x)}{\sqrt {a}}\right )}{d (a+b)^{5/2}}+\frac {\tan ^3(c+d x)}{3 d (a+b)}-\frac {a \tan (c+d x)}{d (a+b)^2} \]
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Rule 211
Rule 308
Rule 3274
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \frac {x^4}{a+(a+b) x^2} \, dx,x,\tan (c+d x)\right )}{d} \\ & = \frac {\text {Subst}\left (\int \left (-\frac {a}{(a+b)^2}+\frac {x^2}{a+b}+\frac {a^2}{(a+b)^2 \left (a+(a+b) x^2\right )}\right ) \, dx,x,\tan (c+d x)\right )}{d} \\ & = -\frac {a \tan (c+d x)}{(a+b)^2 d}+\frac {\tan ^3(c+d x)}{3 (a+b) d}+\frac {a^2 \text {Subst}\left (\int \frac {1}{a+(a+b) x^2} \, dx,x,\tan (c+d x)\right )}{(a+b)^2 d} \\ & = \frac {a^{3/2} \arctan \left (\frac {\sqrt {a+b} \tan (c+d x)}{\sqrt {a}}\right )}{(a+b)^{5/2} d}-\frac {a \tan (c+d x)}{(a+b)^2 d}+\frac {\tan ^3(c+d x)}{3 (a+b) d} \\ \end{align*}
Time = 0.55 (sec) , antiderivative size = 75, normalized size of antiderivative = 1.01 \[ \int \frac {\tan ^4(c+d x)}{a+b \sin ^2(c+d x)} \, dx=\frac {3 a^{3/2} \arctan \left (\frac {\sqrt {a+b} \tan (c+d x)}{\sqrt {a}}\right )+\sqrt {a+b} \left (-4 a-b+(a+b) \sec ^2(c+d x)\right ) \tan (c+d x)}{3 (a+b)^{5/2} d} \]
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Time = 1.74 (sec) , antiderivative size = 78, normalized size of antiderivative = 1.05
method | result | size |
derivativedivides | \(\frac {\frac {\frac {a \left (\tan ^{3}\left (d x +c \right )\right )}{3}+\frac {\left (\tan ^{3}\left (d x +c \right )\right ) b}{3}-\tan \left (d x +c \right ) a}{\left (a +b \right )^{2}}+\frac {a^{2} \arctan \left (\frac {\left (a +b \right ) \tan \left (d x +c \right )}{\sqrt {a \left (a +b \right )}}\right )}{\left (a +b \right )^{2} \sqrt {a \left (a +b \right )}}}{d}\) | \(78\) |
default | \(\frac {\frac {\frac {a \left (\tan ^{3}\left (d x +c \right )\right )}{3}+\frac {\left (\tan ^{3}\left (d x +c \right )\right ) b}{3}-\tan \left (d x +c \right ) a}{\left (a +b \right )^{2}}+\frac {a^{2} \arctan \left (\frac {\left (a +b \right ) \tan \left (d x +c \right )}{\sqrt {a \left (a +b \right )}}\right )}{\left (a +b \right )^{2} \sqrt {a \left (a +b \right )}}}{d}\) | \(78\) |
risch | \(-\frac {2 i \left (6 a \,{\mathrm e}^{4 i \left (d x +c \right )}+3 b \,{\mathrm e}^{4 i \left (d x +c \right )}+6 a \,{\mathrm e}^{2 i \left (d x +c \right )}+4 a +b \right )}{3 d \left (a +b \right )^{2} \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right )^{3}}+\frac {\sqrt {-a \left (a +b \right )}\, a \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}+\frac {2 i \sqrt {-a \left (a +b \right )}-2 a -b}{b}\right )}{2 \left (a +b \right )^{3} d}-\frac {\sqrt {-a \left (a +b \right )}\, a \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}-\frac {2 i \sqrt {-a \left (a +b \right )}+2 a +b}{b}\right )}{2 \left (a +b \right )^{3} d}\) | \(170\) |
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Time = 0.33 (sec) , antiderivative size = 366, normalized size of antiderivative = 4.95 \[ \int \frac {\tan ^4(c+d x)}{a+b \sin ^2(c+d x)} \, dx=\left [\frac {3 \, a \sqrt {-\frac {a}{a + b}} \cos \left (d x + c\right )^{3} \log \left (\frac {{\left (8 \, a^{2} + 8 \, a b + b^{2}\right )} \cos \left (d x + c\right )^{4} - 2 \, {\left (4 \, a^{2} + 5 \, a b + b^{2}\right )} \cos \left (d x + c\right )^{2} - 4 \, {\left ({\left (2 \, a^{2} + 3 \, a b + b^{2}\right )} \cos \left (d x + c\right )^{3} - {\left (a^{2} + 2 \, a b + b^{2}\right )} \cos \left (d x + c\right )\right )} \sqrt {-\frac {a}{a + b}} \sin \left (d x + c\right ) + a^{2} + 2 \, a b + b^{2}}{b^{2} \cos \left (d x + c\right )^{4} - 2 \, {\left (a b + b^{2}\right )} \cos \left (d x + c\right )^{2} + a^{2} + 2 \, a b + b^{2}}\right ) - 4 \, {\left ({\left (4 \, a + b\right )} \cos \left (d x + c\right )^{2} - a - b\right )} \sin \left (d x + c\right )}{12 \, {\left (a^{2} + 2 \, a b + b^{2}\right )} d \cos \left (d x + c\right )^{3}}, -\frac {3 \, a \sqrt {\frac {a}{a + b}} \arctan \left (\frac {{\left ({\left (2 \, a + b\right )} \cos \left (d x + c\right )^{2} - a - b\right )} \sqrt {\frac {a}{a + b}}}{2 \, a \cos \left (d x + c\right ) \sin \left (d x + c\right )}\right ) \cos \left (d x + c\right )^{3} + 2 \, {\left ({\left (4 \, a + b\right )} \cos \left (d x + c\right )^{2} - a - b\right )} \sin \left (d x + c\right )}{6 \, {\left (a^{2} + 2 \, a b + b^{2}\right )} d \cos \left (d x + c\right )^{3}}\right ] \]
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\[ \int \frac {\tan ^4(c+d x)}{a+b \sin ^2(c+d x)} \, dx=\int \frac {\tan ^{4}{\left (c + d x \right )}}{a + b \sin ^{2}{\left (c + d x \right )}}\, dx \]
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Time = 0.35 (sec) , antiderivative size = 85, normalized size of antiderivative = 1.15 \[ \int \frac {\tan ^4(c+d x)}{a+b \sin ^2(c+d x)} \, dx=\frac {\frac {3 \, a^{2} \arctan \left (\frac {{\left (a + b\right )} \tan \left (d x + c\right )}{\sqrt {{\left (a + b\right )} a}}\right )}{\sqrt {{\left (a + b\right )} a} {\left (a^{2} + 2 \, a b + b^{2}\right )}} + \frac {{\left (a + b\right )} \tan \left (d x + c\right )^{3} - 3 \, a \tan \left (d x + c\right )}{a^{2} + 2 \, a b + b^{2}}}{3 \, d} \]
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Leaf count of result is larger than twice the leaf count of optimal. 164 vs. \(2 (64) = 128\).
Time = 0.91 (sec) , antiderivative size = 164, normalized size of antiderivative = 2.22 \[ \int \frac {\tan ^4(c+d x)}{a+b \sin ^2(c+d x)} \, dx=\frac {\frac {3 \, {\left (\pi \left \lfloor \frac {d x + c}{\pi } + \frac {1}{2} \right \rfloor \mathrm {sgn}\left (2 \, a + 2 \, b\right ) + \arctan \left (\frac {a \tan \left (d x + c\right ) + b \tan \left (d x + c\right )}{\sqrt {a^{2} + a b}}\right )\right )} a^{2}}{{\left (a^{2} + 2 \, a b + b^{2}\right )} \sqrt {a^{2} + a b}} + \frac {a^{2} \tan \left (d x + c\right )^{3} + 2 \, a b \tan \left (d x + c\right )^{3} + b^{2} \tan \left (d x + c\right )^{3} - 3 \, a^{2} \tan \left (d x + c\right ) - 3 \, a b \tan \left (d x + c\right )}{a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}}}{3 \, d} \]
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Time = 13.95 (sec) , antiderivative size = 83, normalized size of antiderivative = 1.12 \[ \int \frac {\tan ^4(c+d x)}{a+b \sin ^2(c+d x)} \, dx=\frac {{\mathrm {tan}\left (c+d\,x\right )}^3}{3\,d\,\left (a+b\right )}-\frac {a\,\mathrm {tan}\left (c+d\,x\right )}{d\,{\left (a+b\right )}^2}+\frac {a^{3/2}\,\mathrm {atan}\left (\frac {\mathrm {tan}\left (c+d\,x\right )\,\left (2\,a+2\,b\right )\,\left (a^2+2\,a\,b+b^2\right )}{2\,\sqrt {a}\,{\left (a+b\right )}^{5/2}}\right )}{d\,{\left (a+b\right )}^{5/2}} \]
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