Optimal. Leaf size=148 \[ \frac {\left (3 a^2+12 a b+8 b^2\right ) \tanh ^{-1}\left (\frac {\sqrt {b} \tan ^2(x)}{\sqrt {a+b \tan ^4(x)}}\right )}{16 \sqrt {b}}-\frac {1}{24} \left (4-3 \tan ^2(x)\right ) \left (a+b \tan ^4(x)\right )^{3/2}-\frac {1}{16} \left (8 (a+b)-(3 a+4 b) \tan ^2(x)\right ) \sqrt {a+b \tan ^4(x)}+\frac {1}{2} (a+b)^{3/2} \tanh ^{-1}\left (\frac {a-b \tan ^2(x)}{\sqrt {a+b} \sqrt {a+b \tan ^4(x)}}\right ) \]
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Rubi [A] time = 0.31, antiderivative size = 148, normalized size of antiderivative = 1.00, number of steps used = 9, number of rules used = 7, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.412, Rules used = {3670, 1252, 815, 844, 217, 206, 725} \[ \frac {\left (3 a^2+12 a b+8 b^2\right ) \tanh ^{-1}\left (\frac {\sqrt {b} \tan ^2(x)}{\sqrt {a+b \tan ^4(x)}}\right )}{16 \sqrt {b}}-\frac {1}{24} \left (4-3 \tan ^2(x)\right ) \left (a+b \tan ^4(x)\right )^{3/2}-\frac {1}{16} \left (8 (a+b)-(3 a+4 b) \tan ^2(x)\right ) \sqrt {a+b \tan ^4(x)}+\frac {1}{2} (a+b)^{3/2} \tanh ^{-1}\left (\frac {a-b \tan ^2(x)}{\sqrt {a+b} \sqrt {a+b \tan ^4(x)}}\right ) \]
Antiderivative was successfully verified.
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Rule 206
Rule 217
Rule 725
Rule 815
Rule 844
Rule 1252
Rule 3670
Rubi steps
\begin {align*} \int \tan ^3(x) \left (a+b \tan ^4(x)\right )^{3/2} \, dx &=\operatorname {Subst}\left (\int \frac {x^3 \left (a+b x^4\right )^{3/2}}{1+x^2} \, dx,x,\tan (x)\right )\\ &=\frac {1}{2} \operatorname {Subst}\left (\int \frac {x \left (a+b x^2\right )^{3/2}}{1+x} \, dx,x,\tan ^2(x)\right )\\ &=-\frac {1}{24} \left (4-3 \tan ^2(x)\right ) \left (a+b \tan ^4(x)\right )^{3/2}+\frac {\operatorname {Subst}\left (\int \frac {(-a b+b (3 a+4 b) x) \sqrt {a+b x^2}}{1+x} \, dx,x,\tan ^2(x)\right )}{8 b}\\ &=-\frac {1}{16} \left (8 (a+b)-(3 a+4 b) \tan ^2(x)\right ) \sqrt {a+b \tan ^4(x)}-\frac {1}{24} \left (4-3 \tan ^2(x)\right ) \left (a+b \tan ^4(x)\right )^{3/2}+\frac {\operatorname {Subst}\left (\int \frac {-a b^2 (5 a+4 b)+b^2 \left (3 a^2+12 a b+8 b^2\right ) x}{(1+x) \sqrt {a+b x^2}} \, dx,x,\tan ^2(x)\right )}{16 b^2}\\ &=-\frac {1}{16} \left (8 (a+b)-(3 a+4 b) \tan ^2(x)\right ) \sqrt {a+b \tan ^4(x)}-\frac {1}{24} \left (4-3 \tan ^2(x)\right ) \left (a+b \tan ^4(x)\right )^{3/2}-\frac {1}{2} (a+b)^2 \operatorname {Subst}\left (\int \frac {1}{(1+x) \sqrt {a+b x^2}} \, dx,x,\tan ^2(x)\right )+\frac {1}{16} \left (3 a^2+12 a b+8 b^2\right ) \operatorname {Subst}\left (\int \frac {1}{\sqrt {a+b x^2}} \, dx,x,\tan ^2(x)\right )\\ &=-\frac {1}{16} \left (8 (a+b)-(3 a+4 b) \tan ^2(x)\right ) \sqrt {a+b \tan ^4(x)}-\frac {1}{24} \left (4-3 \tan ^2(x)\right ) \left (a+b \tan ^4(x)\right )^{3/2}+\frac {1}{2} (a+b)^2 \operatorname {Subst}\left (\int \frac {1}{a+b-x^2} \, dx,x,\frac {a-b \tan ^2(x)}{\sqrt {a+b \tan ^4(x)}}\right )+\frac {1}{16} \left (3 a^2+12 a b+8 b^2\right ) \operatorname {Subst}\left (\int \frac {1}{1-b x^2} \, dx,x,\frac {\tan ^2(x)}{\sqrt {a+b \tan ^4(x)}}\right )\\ &=\frac {\left (3 a^2+12 a b+8 b^2\right ) \tanh ^{-1}\left (\frac {\sqrt {b} \tan ^2(x)}{\sqrt {a+b \tan ^4(x)}}\right )}{16 \sqrt {b}}+\frac {1}{2} (a+b)^{3/2} \tanh ^{-1}\left (\frac {a-b \tan ^2(x)}{\sqrt {a+b} \sqrt {a+b \tan ^4(x)}}\right )-\frac {1}{16} \left (8 (a+b)-(3 a+4 b) \tan ^2(x)\right ) \sqrt {a+b \tan ^4(x)}-\frac {1}{24} \left (4-3 \tan ^2(x)\right ) \left (a+b \tan ^4(x)\right )^{3/2}\\ \end {align*}
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Mathematica [B] time = 6.08, size = 324, normalized size = 2.19 \[ \frac {1}{2} a \tan ^2(x) \sqrt {a+b \tan ^4(x)} \left (\frac {b \tan ^4(x)}{a}+1\right )^2 \left (\frac {1}{4} \left (\frac {1}{\frac {b \tan ^4(x)}{a}+1}+\frac {3}{2 \left (\frac {b \tan ^4(x)}{a}+1\right )^2}\right )+\frac {3 \sqrt {a} \cot ^2(x) \sinh ^{-1}\left (\frac {\sqrt {b} \tan ^2(x)}{\sqrt {a}}\right )}{8 \sqrt {b} \left (\frac {b \tan ^4(x)}{a}+1\right )^{5/2}}\right )+\frac {1}{2} \left (-\frac {1}{3} \left (a+b \tan ^4(x)\right )^{3/2}-(a+b) \left (\sqrt {a+b \tan ^4(x)}-\sqrt {b} \tanh ^{-1}\left (\frac {\sqrt {b} \tan ^2(x)}{\sqrt {a+b \tan ^4(x)}}\right )-\sqrt {a+b} \tanh ^{-1}\left (\frac {a-b \tan ^2(x)}{\sqrt {a+b} \sqrt {a+b \tan ^4(x)}}\right )\right )+b \tan ^2(x) \sqrt {a+b \tan ^4(x)} \left (\frac {b \tan ^4(x)}{a}+1\right ) \left (\frac {1}{2 \left (\frac {b \tan ^4(x)}{a}+1\right )}+\frac {\sqrt {a} \cot ^2(x) \sinh ^{-1}\left (\frac {\sqrt {b} \tan ^2(x)}{\sqrt {a}}\right )}{2 \sqrt {b} \left (\frac {b \tan ^4(x)}{a}+1\right )^{3/2}}\right )\right ) \]
Antiderivative was successfully verified.
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fricas [A] time = 0.87, size = 758, normalized size = 5.12 \[ \left [\frac {3 \, {\left (3 \, a^{2} + 12 \, a b + 8 \, b^{2}\right )} \sqrt {b} \log \left (-2 \, b \tan \relax (x)^{4} - 2 \, \sqrt {b \tan \relax (x)^{4} + a} \sqrt {b} \tan \relax (x)^{2} - a\right ) + 24 \, {\left (a b + b^{2}\right )} \sqrt {a + b} \log \left (\frac {{\left (a b + 2 \, b^{2}\right )} \tan \relax (x)^{4} - 2 \, a b \tan \relax (x)^{2} - 2 \, \sqrt {b \tan \relax (x)^{4} + a} {\left (b \tan \relax (x)^{2} - a\right )} \sqrt {a + b} + 2 \, a^{2} + a b}{\tan \relax (x)^{4} + 2 \, \tan \relax (x)^{2} + 1}\right ) + 2 \, {\left (6 \, b^{2} \tan \relax (x)^{6} - 8 \, b^{2} \tan \relax (x)^{4} + 3 \, {\left (5 \, a b + 4 \, b^{2}\right )} \tan \relax (x)^{2} - 32 \, a b - 24 \, b^{2}\right )} \sqrt {b \tan \relax (x)^{4} + a}}{96 \, b}, -\frac {3 \, {\left (3 \, a^{2} + 12 \, a b + 8 \, b^{2}\right )} \sqrt {-b} \arctan \left (\frac {\sqrt {b \tan \relax (x)^{4} + a} \sqrt {-b}}{b \tan \relax (x)^{2}}\right ) - 12 \, {\left (a b + b^{2}\right )} \sqrt {a + b} \log \left (\frac {{\left (a b + 2 \, b^{2}\right )} \tan \relax (x)^{4} - 2 \, a b \tan \relax (x)^{2} - 2 \, \sqrt {b \tan \relax (x)^{4} + a} {\left (b \tan \relax (x)^{2} - a\right )} \sqrt {a + b} + 2 \, a^{2} + a b}{\tan \relax (x)^{4} + 2 \, \tan \relax (x)^{2} + 1}\right ) - {\left (6 \, b^{2} \tan \relax (x)^{6} - 8 \, b^{2} \tan \relax (x)^{4} + 3 \, {\left (5 \, a b + 4 \, b^{2}\right )} \tan \relax (x)^{2} - 32 \, a b - 24 \, b^{2}\right )} \sqrt {b \tan \relax (x)^{4} + a}}{48 \, b}, \frac {48 \, {\left (a b + b^{2}\right )} \sqrt {-a - b} \arctan \left (\frac {\sqrt {b \tan \relax (x)^{4} + a} {\left (b \tan \relax (x)^{2} - a\right )} \sqrt {-a - b}}{{\left (a b + b^{2}\right )} \tan \relax (x)^{4} + a^{2} + a b}\right ) + 3 \, {\left (3 \, a^{2} + 12 \, a b + 8 \, b^{2}\right )} \sqrt {b} \log \left (-2 \, b \tan \relax (x)^{4} - 2 \, \sqrt {b \tan \relax (x)^{4} + a} \sqrt {b} \tan \relax (x)^{2} - a\right ) + 2 \, {\left (6 \, b^{2} \tan \relax (x)^{6} - 8 \, b^{2} \tan \relax (x)^{4} + 3 \, {\left (5 \, a b + 4 \, b^{2}\right )} \tan \relax (x)^{2} - 32 \, a b - 24 \, b^{2}\right )} \sqrt {b \tan \relax (x)^{4} + a}}{96 \, b}, \frac {24 \, {\left (a b + b^{2}\right )} \sqrt {-a - b} \arctan \left (\frac {\sqrt {b \tan \relax (x)^{4} + a} {\left (b \tan \relax (x)^{2} - a\right )} \sqrt {-a - b}}{{\left (a b + b^{2}\right )} \tan \relax (x)^{4} + a^{2} + a b}\right ) - 3 \, {\left (3 \, a^{2} + 12 \, a b + 8 \, b^{2}\right )} \sqrt {-b} \arctan \left (\frac {\sqrt {b \tan \relax (x)^{4} + a} \sqrt {-b}}{b \tan \relax (x)^{2}}\right ) + {\left (6 \, b^{2} \tan \relax (x)^{6} - 8 \, b^{2} \tan \relax (x)^{4} + 3 \, {\left (5 \, a b + 4 \, b^{2}\right )} \tan \relax (x)^{2} - 32 \, a b - 24 \, b^{2}\right )} \sqrt {b \tan \relax (x)^{4} + a}}{48 \, b}\right ] \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.60, size = 176, normalized size = 1.19 \[ \frac {1}{48} \, \sqrt {b \tan \relax (x)^{4} + a} {\left ({\left (2 \, {\left (3 \, b \tan \relax (x)^{2} - 4 \, b\right )} \tan \relax (x)^{2} + \frac {3 \, {\left (5 \, a b^{2} + 4 \, b^{3}\right )}}{b^{2}}\right )} \tan \relax (x)^{2} - \frac {8 \, {\left (4 \, a b^{2} + 3 \, b^{3}\right )}}{b^{2}}\right )} - \frac {{\left (a^{2} + 2 \, a b + b^{2}\right )} \arctan \left (-\frac {\sqrt {b} \tan \relax (x)^{2} - \sqrt {b \tan \relax (x)^{4} + a} + \sqrt {b}}{\sqrt {-a - b}}\right )}{\sqrt {-a - b}} - \frac {{\left (3 \, a^{2} \sqrt {b} + 12 \, a b^{\frac {3}{2}} + 8 \, b^{\frac {5}{2}}\right )} \log \left ({\left | -\sqrt {b} \tan \relax (x)^{2} + \sqrt {b \tan \relax (x)^{4} + a} \right |}\right )}{16 \, b} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.21, size = 374, normalized size = 2.53 \[ \frac {b \left (\tan ^{6}\relax (x )\right ) \sqrt {a +b \left (\tan ^{4}\relax (x )\right )}}{8}+\frac {5 a \left (\tan ^{2}\relax (x )\right ) \sqrt {a +b \left (\tan ^{4}\relax (x )\right )}}{16}+\frac {3 a^{2} \ln \left (\sqrt {b}\, \left (\tan ^{2}\relax (x )\right )+\sqrt {a +b \left (\tan ^{4}\relax (x )\right )}\right )}{16 \sqrt {b}}-\frac {b \left (\tan ^{4}\relax (x )\right ) \sqrt {a +b \left (\tan ^{4}\relax (x )\right )}}{6}-\frac {2 a \sqrt {a +b \left (\tan ^{4}\relax (x )\right )}}{3}+\frac {b \left (\tan ^{2}\relax (x )\right ) \sqrt {a +b \left (\tan ^{4}\relax (x )\right )}}{4}+\frac {3 a \sqrt {b}\, \ln \left (\sqrt {b}\, \left (\tan ^{2}\relax (x )\right )+\sqrt {a +b \left (\tan ^{4}\relax (x )\right )}\right )}{4}-\frac {b \sqrt {a +b \left (\tan ^{4}\relax (x )\right )}}{2}+\frac {b^{\frac {3}{2}} \ln \left (\sqrt {b}\, \left (\tan ^{2}\relax (x )\right )+\sqrt {a +b \left (\tan ^{4}\relax (x )\right )}\right )}{2}+\frac {\ln \left (\frac {2 a +2 b -2 \left (1+\tan ^{2}\relax (x )\right ) b +2 \sqrt {a +b}\, \sqrt {\left (1+\tan ^{2}\relax (x )\right )^{2} b -2 \left (1+\tan ^{2}\relax (x )\right ) b +a +b}}{1+\tan ^{2}\relax (x )}\right ) a^{2}}{2 \sqrt {a +b}}+\frac {\ln \left (\frac {2 a +2 b -2 \left (1+\tan ^{2}\relax (x )\right ) b +2 \sqrt {a +b}\, \sqrt {\left (1+\tan ^{2}\relax (x )\right )^{2} b -2 \left (1+\tan ^{2}\relax (x )\right ) b +a +b}}{1+\tan ^{2}\relax (x )}\right ) a b}{\sqrt {a +b}}+\frac {\ln \left (\frac {2 a +2 b -2 \left (1+\tan ^{2}\relax (x )\right ) b +2 \sqrt {a +b}\, \sqrt {\left (1+\tan ^{2}\relax (x )\right )^{2} b -2 \left (1+\tan ^{2}\relax (x )\right ) b +a +b}}{1+\tan ^{2}\relax (x )}\right ) b^{2}}{2 \sqrt {a +b}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int {\left (b \tan \relax (x)^{4} + a\right )}^{\frac {3}{2}} \tan \relax (x)^{3}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.01 \[ \int {\mathrm {tan}\relax (x)}^3\,{\left (b\,{\mathrm {tan}\relax (x)}^4+a\right )}^{3/2} \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \left (a + b \tan ^{4}{\relax (x )}\right )^{\frac {3}{2}} \tan ^{3}{\relax (x )}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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