Optimal. Leaf size=50 \[ \frac{1}{2} x \left (a^2+2 b^2\right )+\frac{a^2 \sin (c+d x) \cos (c+d x)}{2 d}+\frac{2 a b \sin (c+d x)}{d} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.0657883, antiderivative size = 50, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.19, Rules used = {3788, 2637, 4045, 8} \[ \frac{1}{2} x \left (a^2+2 b^2\right )+\frac{a^2 \sin (c+d x) \cos (c+d x)}{2 d}+\frac{2 a b \sin (c+d x)}{d} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 3788
Rule 2637
Rule 4045
Rule 8
Rubi steps
\begin{align*} \int \cos ^2(c+d x) (a+b \sec (c+d x))^2 \, dx &=(2 a b) \int \cos (c+d x) \, dx+\int \cos ^2(c+d x) \left (a^2+b^2 \sec ^2(c+d x)\right ) \, dx\\ &=\frac{2 a b \sin (c+d x)}{d}+\frac{a^2 \cos (c+d x) \sin (c+d x)}{2 d}+\frac{1}{2} \left (a^2+2 b^2\right ) \int 1 \, dx\\ &=\frac{1}{2} \left (a^2+2 b^2\right ) x+\frac{2 a b \sin (c+d x)}{d}+\frac{a^2 \cos (c+d x) \sin (c+d x)}{2 d}\\ \end{align*}
Mathematica [A] time = 0.0718922, size = 46, normalized size = 0.92 \[ \frac{2 \left (a^2+2 b^2\right ) (c+d x)+a^2 \sin (2 (c+d x))+8 a b \sin (c+d x)}{4 d} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.046, size = 51, normalized size = 1. \begin{align*}{\frac{1}{d} \left ({a}^{2} \left ({\frac{\cos \left ( dx+c \right ) \sin \left ( dx+c \right ) }{2}}+{\frac{dx}{2}}+{\frac{c}{2}} \right ) +2\,ab\sin \left ( dx+c \right ) +{b}^{2} \left ( dx+c \right ) \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A] time = 1.15161, size = 63, normalized size = 1.26 \begin{align*} \frac{{\left (2 \, d x + 2 \, c + \sin \left (2 \, d x + 2 \, c\right )\right )} a^{2} + 4 \,{\left (d x + c\right )} b^{2} + 8 \, a b \sin \left (d x + c\right )}{4 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 1.60525, size = 93, normalized size = 1.86 \begin{align*} \frac{{\left (a^{2} + 2 \, b^{2}\right )} d x +{\left (a^{2} \cos \left (d x + c\right ) + 4 \, a b\right )} \sin \left (d x + c\right )}{2 \, d} \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 \left (a + b \sec{\left (c + d x \right )}\right )^{2} \cos ^{2}{\left (c + d x \right )}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [B] time = 1.26894, size = 130, normalized size = 2.6 \begin{align*} \frac{{\left (a^{2} + 2 \, b^{2}\right )}{\left (d x + c\right )} - \frac{2 \,{\left (a^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} - 4 \, a b \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{3} - a^{2} \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right ) - 4 \, a b \tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )\right )}}{{\left (\tan \left (\frac{1}{2} \, d x + \frac{1}{2} \, c\right )^{2} + 1\right )}^{2}}}{2 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]