Optimal. Leaf size=94 \[ -\frac{2 b \tan ^{-1}\left (\frac{\sqrt{a-b} \tan \left (\frac{1}{2} (c+d x)\right )}{\sqrt{a+b}}\right )}{a^2 d \sqrt{a-b} \sqrt{a+b}}+\frac{\tanh ^{-1}(\sin (c+d x))}{a^2 d}-\frac{\sin (c+d x)}{a d (a+b \cos (c+d x))} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.170311, antiderivative size = 94, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 31, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.194, Rules used = {3056, 12, 2747, 3770, 2659, 205} \[ -\frac{2 b \tan ^{-1}\left (\frac{\sqrt{a-b} \tan \left (\frac{1}{2} (c+d x)\right )}{\sqrt{a+b}}\right )}{a^2 d \sqrt{a-b} \sqrt{a+b}}+\frac{\tanh ^{-1}(\sin (c+d x))}{a^2 d}-\frac{\sin (c+d x)}{a d (a+b \cos (c+d x))} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 3056
Rule 12
Rule 2747
Rule 3770
Rule 2659
Rule 205
Rubi steps
\begin{align*} \int \frac{\left (1-\cos ^2(c+d x)\right ) \sec (c+d x)}{(a+b \cos (c+d x))^2} \, dx &=-\frac{\sin (c+d x)}{a d (a+b \cos (c+d x))}+\frac{\int \frac{\left (a^2-b^2\right ) \sec (c+d x)}{a+b \cos (c+d x)} \, dx}{a \left (a^2-b^2\right )}\\ &=-\frac{\sin (c+d x)}{a d (a+b \cos (c+d x))}+\frac{\int \frac{\sec (c+d x)}{a+b \cos (c+d x)} \, dx}{a}\\ &=-\frac{\sin (c+d x)}{a d (a+b \cos (c+d x))}+\frac{\int \sec (c+d x) \, dx}{a^2}-\frac{b \int \frac{1}{a+b \cos (c+d x)} \, dx}{a^2}\\ &=\frac{\tanh ^{-1}(\sin (c+d x))}{a^2 d}-\frac{\sin (c+d x)}{a d (a+b \cos (c+d x))}-\frac{(2 b) \operatorname{Subst}\left (\int \frac{1}{a+b+(a-b) x^2} \, dx,x,\tan \left (\frac{1}{2} (c+d x)\right )\right )}{a^2 d}\\ &=-\frac{2 b \tan ^{-1}\left (\frac{\sqrt{a-b} \tan \left (\frac{1}{2} (c+d x)\right )}{\sqrt{a+b}}\right )}{a^2 \sqrt{a-b} \sqrt{a+b} d}+\frac{\tanh ^{-1}(\sin (c+d x))}{a^2 d}-\frac{\sin (c+d x)}{a d (a+b \cos (c+d x))}\\ \end{align*}
Mathematica [A] time = 0.18973, size = 123, normalized size = 1.31 \[ \frac{\frac{2 b \tanh ^{-1}\left (\frac{(a-b) \tan \left (\frac{1}{2} (c+d x)\right )}{\sqrt{b^2-a^2}}\right )}{\sqrt{b^2-a^2}}-\frac{a \sin (c+d x)}{a+b \cos (c+d x)}-\log \left (\cos \left (\frac{1}{2} (c+d x)\right )-\sin \left (\frac{1}{2} (c+d x)\right )\right )+\log \left (\sin \left (\frac{1}{2} (c+d x)\right )+\cos \left (\frac{1}{2} (c+d x)\right )\right )}{a^2 d} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.047, size = 137, normalized size = 1.5 \begin{align*} -2\,{\frac{\tan \left ( 1/2\,dx+c/2 \right ) }{da \left ( a \left ( \tan \left ( 1/2\,dx+c/2 \right ) \right ) ^{2}- \left ( \tan \left ( 1/2\,dx+c/2 \right ) \right ) ^{2}b+a+b \right ) }}-2\,{\frac{b}{d{a}^{2}\sqrt{ \left ( a+b \right ) \left ( a-b \right ) }}\arctan \left ({\frac{ \left ( a-b \right ) \tan \left ( 1/2\,dx+c/2 \right ) }{\sqrt{ \left ( a+b \right ) \left ( a-b \right ) }}} \right ) }-{\frac{1}{d{a}^{2}}\ln \left ( \tan \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) -1 \right ) }+{\frac{1}{d{a}^{2}}\ln \left ( \tan \left ({\frac{dx}{2}}+{\frac{c}{2}} \right ) +1 \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
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.
[In]
[Out]
________________________________________________________________________________________
Fricas [B] time = 1.94589, size = 1056, normalized size = 11.23 \begin{align*} \left [-\frac{{\left (b^{2} \cos \left (d x + c\right ) + a b\right )} \sqrt{-a^{2} + b^{2}} \log \left (\frac{2 \, a b \cos \left (d x + c\right ) +{\left (2 \, a^{2} - b^{2}\right )} \cos \left (d x + c\right )^{2} - 2 \, \sqrt{-a^{2} + b^{2}}{\left (a \cos \left (d x + c\right ) + b\right )} \sin \left (d x + c\right ) - a^{2} + 2 \, b^{2}}{b^{2} \cos \left (d x + c\right )^{2} + 2 \, a b \cos \left (d x + c\right ) + a^{2}}\right ) -{\left (a^{3} - a b^{2} +{\left (a^{2} b - b^{3}\right )} \cos \left (d x + c\right )\right )} \log \left (\sin \left (d x + c\right ) + 1\right ) +{\left (a^{3} - a b^{2} +{\left (a^{2} b - b^{3}\right )} \cos \left (d x + c\right )\right )} \log \left (-\sin \left (d x + c\right ) + 1\right ) + 2 \,{\left (a^{3} - a b^{2}\right )} \sin \left (d x + c\right )}{2 \,{\left ({\left (a^{4} b - a^{2} b^{3}\right )} d \cos \left (d x + c\right ) +{\left (a^{5} - a^{3} b^{2}\right )} d\right )}}, -\frac{2 \,{\left (b^{2} \cos \left (d x + c\right ) + a b\right )} \sqrt{a^{2} - b^{2}} \arctan \left (-\frac{a \cos \left (d x + c\right ) + b}{\sqrt{a^{2} - b^{2}} \sin \left (d x + c\right )}\right ) -{\left (a^{3} - a b^{2} +{\left (a^{2} b - b^{3}\right )} \cos \left (d x + c\right )\right )} \log \left (\sin \left (d x + c\right ) + 1\right ) +{\left (a^{3} - a b^{2} +{\left (a^{2} b - b^{3}\right )} \cos \left (d x + c\right )\right )} \log \left (-\sin \left (d x + c\right ) + 1\right ) + 2 \,{\left (a^{3} - a b^{2}\right )} \sin \left (d x + c\right )}{2 \,{\left ({\left (a^{4} b - a^{2} b^{3}\right )} d \cos \left (d x + c\right ) +{\left (a^{5} - a^{3} b^{2}\right )} d\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} - \int - \frac{\sec{\left (c + d x \right )}}{a^{2} + 2 a b \cos{\left (c + d x \right )} + b^{2} \cos ^{2}{\left (c + d x \right )}}\, dx - \int \frac{\cos ^{2}{\left (c + d x \right )} \sec{\left (c + d x \right )}}{a^{2} + 2 a b \cos{\left (c + d x \right )} + b^{2} \cos ^{2}{\left (c + d x \right )}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A] time = 1.6128, size = 223, normalized size = 2.37 \begin{align*} -\frac{\frac{2 \,{\left (\pi \left \lfloor \frac{d x + c}{2 \, \pi } + \frac{1}{2} \right \rfloor \mathrm{sgn}\left (2 \, a - 2 \, b\right ) + \arctan \left (\frac{a \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) - b \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )}{\sqrt{a^{2} - b^{2}}}\right )\right )} b}{\sqrt{a^{2} - b^{2}} a^{2}} - \frac{\log \left ({\left | \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) + 1 \right |}\right )}{a^{2}} + \frac{\log \left ({\left | \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) - 1 \right |}\right )}{a^{2}} + \frac{2 \, \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )}{{\left (a \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{2} - b \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{2} + a + b\right )} a}}{d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]