Optimal. Leaf size=100 \[ -\frac {a B \log (a+b \cos (x))}{a^2-b^2}+\frac {2 A \tan ^{-1}\left (\frac {\sqrt {a-b} \tan \left (\frac {x}{2}\right )}{\sqrt {a+b}}\right )}{\sqrt {a-b} \sqrt {a+b}}+\frac {B \log (1-\cos (x))}{2 (a+b)}+\frac {B \log (\cos (x)+1)}{2 (a-b)} \]
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Rubi [A] time = 0.16, antiderivative size = 100, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 5, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {4401, 2659, 205, 2721, 801} \[ -\frac {a B \log (a+b \cos (x))}{a^2-b^2}+\frac {2 A \tan ^{-1}\left (\frac {\sqrt {a-b} \tan \left (\frac {x}{2}\right )}{\sqrt {a+b}}\right )}{\sqrt {a-b} \sqrt {a+b}}+\frac {B \log (1-\cos (x))}{2 (a+b)}+\frac {B \log (\cos (x)+1)}{2 (a-b)} \]
Antiderivative was successfully verified.
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Rule 205
Rule 801
Rule 2659
Rule 2721
Rule 4401
Rubi steps
\begin {align*} \int \frac {A+B \cot (x)}{a+b \cos (x)} \, dx &=\int \left (\frac {A}{a+b \cos (x)}+\frac {B \cot (x)}{a+b \cos (x)}\right ) \, dx\\ &=A \int \frac {1}{a+b \cos (x)} \, dx+B \int \frac {\cot (x)}{a+b \cos (x)} \, dx\\ &=(2 A) \operatorname {Subst}\left (\int \frac {1}{a+b+(a-b) x^2} \, dx,x,\tan \left (\frac {x}{2}\right )\right )-B \operatorname {Subst}\left (\int \frac {x}{(a+x) \left (b^2-x^2\right )} \, dx,x,b \cos (x)\right )\\ &=\frac {2 A \tan ^{-1}\left (\frac {\sqrt {a-b} \tan \left (\frac {x}{2}\right )}{\sqrt {a+b}}\right )}{\sqrt {a-b} \sqrt {a+b}}-B \operatorname {Subst}\left (\int \left (\frac {1}{2 (a+b) (b-x)}+\frac {a}{(a-b) (a+b) (a+x)}-\frac {1}{2 (a-b) (b+x)}\right ) \, dx,x,b \cos (x)\right )\\ &=\frac {2 A \tan ^{-1}\left (\frac {\sqrt {a-b} \tan \left (\frac {x}{2}\right )}{\sqrt {a+b}}\right )}{\sqrt {a-b} \sqrt {a+b}}+\frac {B \log (1-\cos (x))}{2 (a+b)}+\frac {B \log (1+\cos (x))}{2 (a-b)}-\frac {a B \log (a+b \cos (x))}{a^2-b^2}\\ \end {align*}
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Mathematica [A] time = 0.27, size = 134, normalized size = 1.34 \[ \frac {\sin (x) (A+B \cot (x)) \left (B \sqrt {b^2-a^2} \left ((a-b) \log \left (\sin \left (\frac {x}{2}\right )\right )+(a+b) \log \left (\cos \left (\frac {x}{2}\right )\right )-a \log (a+b \cos (x))\right )-2 A \left (a^2-b^2\right ) \tanh ^{-1}\left (\frac {(a-b) \tan \left (\frac {x}{2}\right )}{\sqrt {b^2-a^2}}\right )\right )}{(a-b) (a+b) \sqrt {b^2-a^2} (A \sin (x)+B \cos (x))} \]
Antiderivative was successfully verified.
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fricas [A] time = 7.23, size = 266, normalized size = 2.66 \[ \left [-\frac {B a \log \left (b^{2} \cos \relax (x)^{2} + 2 \, a b \cos \relax (x) + a^{2}\right ) + \sqrt {-a^{2} + b^{2}} A \log \left (\frac {2 \, a b \cos \relax (x) + {\left (2 \, a^{2} - b^{2}\right )} \cos \relax (x)^{2} + 2 \, \sqrt {-a^{2} + b^{2}} {\left (a \cos \relax (x) + b\right )} \sin \relax (x) - a^{2} + 2 \, b^{2}}{b^{2} \cos \relax (x)^{2} + 2 \, a b \cos \relax (x) + a^{2}}\right ) - {\left (B a + B b\right )} \log \left (\frac {1}{2} \, \cos \relax (x) + \frac {1}{2}\right ) - {\left (B a - B b\right )} \log \left (-\frac {1}{2} \, \cos \relax (x) + \frac {1}{2}\right )}{2 \, {\left (a^{2} - b^{2}\right )}}, -\frac {B a \log \left (b^{2} \cos \relax (x)^{2} + 2 \, a b \cos \relax (x) + a^{2}\right ) - 2 \, \sqrt {a^{2} - b^{2}} A \arctan \left (-\frac {a \cos \relax (x) + b}{\sqrt {a^{2} - b^{2}} \sin \relax (x)}\right ) - {\left (B a + B b\right )} \log \left (\frac {1}{2} \, \cos \relax (x) + \frac {1}{2}\right ) - {\left (B a - B b\right )} \log \left (-\frac {1}{2} \, \cos \relax (x) + \frac {1}{2}\right )}{2 \, {\left (a^{2} - b^{2}\right )}}\right ] \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.38, size = 116, normalized size = 1.16 \[ -\frac {B a \log \left (-a \tan \left (\frac {1}{2} \, x\right )^{2} + b \tan \left (\frac {1}{2} \, x\right )^{2} - a - b\right )}{a^{2} - b^{2}} - \frac {2 \, {\left (\pi \left \lfloor \frac {x}{2 \, \pi } + \frac {1}{2} \right \rfloor \mathrm {sgn}\left (-2 \, a + 2 \, b\right ) + \arctan \left (-\frac {a \tan \left (\frac {1}{2} \, x\right ) - b \tan \left (\frac {1}{2} \, x\right )}{\sqrt {a^{2} - b^{2}}}\right )\right )} A}{\sqrt {a^{2} - b^{2}}} + \frac {B \log \left ({\left | \tan \left (\frac {1}{2} \, x\right ) \right |}\right )}{a + b} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.10, size = 135, normalized size = 1.35 \[ -\frac {a B \ln \left (a \left (\tan ^{2}\left (\frac {x}{2}\right )\right )-\left (\tan ^{2}\left (\frac {x}{2}\right )\right ) b +a +b \right )}{\left (a +b \right ) \left (a -b \right )}+\frac {2 \arctan \left (\frac {\tan \left (\frac {x}{2}\right ) \left (a -b \right )}{\sqrt {\left (a -b \right ) \left (a +b \right )}}\right ) a A}{\left (a +b \right ) \sqrt {\left (a -b \right ) \left (a +b \right )}}+\frac {2 \arctan \left (\frac {\tan \left (\frac {x}{2}\right ) \left (a -b \right )}{\sqrt {\left (a -b \right ) \left (a +b \right )}}\right ) A b}{\left (a +b \right ) \sqrt {\left (a -b \right ) \left (a +b \right )}}+\frac {B \ln \left (\tan \left (\frac {x}{2}\right )\right )}{a +b} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F(-2)] time = 0.00, size = 0, normalized size = 0.00 \[ \text {Exception raised: ValueError} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 3.58, size = 419, normalized size = 4.19 \[ \frac {B\,\ln \left (\mathrm {tan}\left (\frac {x}{2}\right )\right )}{a+b}+\frac {\ln \left (3\,B\,a^2\,b^2-B\,b^4-2\,B\,a^4+A\,a\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}+A\,b\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}+A\,a^4\,\mathrm {tan}\left (\frac {x}{2}\right )+A\,b^4\,\mathrm {tan}\left (\frac {x}{2}\right )+B\,a\,b^3-B\,a^3\,b-2\,A\,a^2\,b^2\,\mathrm {tan}\left (\frac {x}{2}\right )+2\,B\,a\,\mathrm {tan}\left (\frac {x}{2}\right )\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}-B\,b\,\mathrm {tan}\left (\frac {x}{2}\right )\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}\right )\,\left (A\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}-B\,a^3+B\,a\,b^2\right )}{a^4-2\,a^2\,b^2+b^4}-\frac {\ln \left (2\,B\,a^4+B\,b^4-3\,B\,a^2\,b^2+A\,a\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}+A\,b\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}-A\,a^4\,\mathrm {tan}\left (\frac {x}{2}\right )-A\,b^4\,\mathrm {tan}\left (\frac {x}{2}\right )-B\,a\,b^3+B\,a^3\,b+2\,A\,a^2\,b^2\,\mathrm {tan}\left (\frac {x}{2}\right )+2\,B\,a\,\mathrm {tan}\left (\frac {x}{2}\right )\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}-B\,b\,\mathrm {tan}\left (\frac {x}{2}\right )\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}\right )\,\left (B\,a^3+A\,\sqrt {-{\left (a+b\right )}^3\,{\left (a-b\right )}^3}-B\,a\,b^2\right )}{a^4-2\,a^2\,b^2+b^4} \]
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 \[ \int \frac {A + B \cot {\relax (x )}}{a + b \cos {\relax (x )}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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