Optimal. Leaf size=57 \[ \frac{2 A \tan ^{-1}\left (\frac{\sqrt{a-b} \tan \left (\frac{x}{2}\right )}{\sqrt{a+b}}\right )}{\sqrt{a-b} \sqrt{a+b}}-\frac{B \log (a+b \cos (x))}{b} \]
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Rubi [A] time = 0.127084, antiderivative size = 57, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 5, integrand size = 15, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.333, Rules used = {4401, 2659, 205, 2668, 31} \[ \frac{2 A \tan ^{-1}\left (\frac{\sqrt{a-b} \tan \left (\frac{x}{2}\right )}{\sqrt{a+b}}\right )}{\sqrt{a-b} \sqrt{a+b}}-\frac{B \log (a+b \cos (x))}{b} \]
Antiderivative was successfully verified.
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Rule 4401
Rule 2659
Rule 205
Rule 2668
Rule 31
Rubi steps
\begin{align*} \int \frac{A+B \sin (x)}{a+b \cos (x)} \, dx &=\int \left (\frac{A}{a+b \cos (x)}+\frac{B \sin (x)}{a+b \cos (x)}\right ) \, dx\\ &=A \int \frac{1}{a+b \cos (x)} \, dx+B \int \frac{\sin (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 )-\frac{B \operatorname{Subst}\left (\int \frac{1}{a+x} \, dx,x,b \cos (x)\right )}{b}\\ &=\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 (a+b \cos (x))}{b}\\ \end{align*}
Mathematica [A] time = 0.08157, size = 56, normalized size = 0.98 \[ -\frac{2 A \tanh ^{-1}\left (\frac{(a-b) \tan \left (\frac{x}{2}\right )}{\sqrt{b^2-a^2}}\right )}{\sqrt{b^2-a^2}}-\frac{B \log (a+b \cos (x))}{b} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.022, size = 117, normalized size = 2.1 \begin{align*}{\frac{B}{b}\ln \left ( \left ( \tan \left ({\frac{x}{2}} \right ) \right ) ^{2}+1 \right ) }-{\frac{Ba}{b \left ( a-b \right ) }\ln \left ( \left ( \tan \left ({\frac{x}{2}} \right ) \right ) ^{2}a- \left ( \tan \left ({\frac{x}{2}} \right ) \right ) ^{2}b+a+b \right ) }+{\frac{B}{a-b}\ln \left ( \left ( \tan \left ({\frac{x}{2}} \right ) \right ) ^{2}a- \left ( \tan \left ({\frac{x}{2}} \right ) \right ) ^{2}b+a+b \right ) }+2\,{\frac{A}{\sqrt{ \left ( a+b \right ) \left ( a-b \right ) }}\arctan \left ({\frac{ \left ( a-b \right ) \tan \left ( x/2 \right ) }{\sqrt{ \left ( a+b \right ) \left ( a-b \right ) }}} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.21459, size = 528, normalized size = 9.26 \begin{align*} \left [-\frac{\sqrt{-a^{2} + b^{2}} A b \log \left (\frac{2 \, a b \cos \left (x\right ) +{\left (2 \, a^{2} - b^{2}\right )} \cos \left (x\right )^{2} + 2 \, \sqrt{-a^{2} + b^{2}}{\left (a \cos \left (x\right ) + b\right )} \sin \left (x\right ) - a^{2} + 2 \, b^{2}}{b^{2} \cos \left (x\right )^{2} + 2 \, a b \cos \left (x\right ) + a^{2}}\right ) +{\left (B a^{2} - B b^{2}\right )} \log \left (b^{2} \cos \left (x\right )^{2} + 2 \, a b \cos \left (x\right ) + a^{2}\right )}{2 \,{\left (a^{2} b - b^{3}\right )}}, \frac{2 \, \sqrt{a^{2} - b^{2}} A b \arctan \left (-\frac{a \cos \left (x\right ) + b}{\sqrt{a^{2} - b^{2}} \sin \left (x\right )}\right ) -{\left (B a^{2} - B b^{2}\right )} \log \left (b^{2} \cos \left (x\right )^{2} + 2 \, a b \cos \left (x\right ) + a^{2}\right )}{2 \,{\left (a^{2} b - b^{3}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.14653, size = 146, normalized size = 2.56 \begin{align*} -\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 (-a \tan \left (\frac{1}{2} \, x\right )^{2} + b \tan \left (\frac{1}{2} \, x\right )^{2} - a - b\right )}{b} + \frac{B \log \left (\tan \left (\frac{1}{2} \, x\right )^{2} + 1\right )}{b} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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