Optimal. Leaf size=97 \[ -\frac{9 \cot (c+d x)}{4 a^2 d}-\frac{2 i \log (\sin (c+d x))}{a^2 d}+\frac{\cot (c+d x)}{a^2 d (1+i \tan (c+d x))}-\frac{9 x}{4 a^2}+\frac{\cot (c+d x)}{4 d (a+i a \tan (c+d x))^2} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.201486, antiderivative size = 97, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.208, Rules used = {3559, 3596, 3529, 3531, 3475} \[ -\frac{9 \cot (c+d x)}{4 a^2 d}-\frac{2 i \log (\sin (c+d x))}{a^2 d}+\frac{\cot (c+d x)}{a^2 d (1+i \tan (c+d x))}-\frac{9 x}{4 a^2}+\frac{\cot (c+d x)}{4 d (a+i a \tan (c+d x))^2} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 3559
Rule 3596
Rule 3529
Rule 3531
Rule 3475
Rubi steps
\begin{align*} \int \frac{\cot ^2(c+d x)}{(a+i a \tan (c+d x))^2} \, dx &=\frac{\cot (c+d x)}{4 d (a+i a \tan (c+d x))^2}+\frac{\int \frac{\cot ^2(c+d x) (5 a-3 i a \tan (c+d x))}{a+i a \tan (c+d x)} \, dx}{4 a^2}\\ &=\frac{\cot (c+d x)}{a^2 d (1+i \tan (c+d x))}+\frac{\cot (c+d x)}{4 d (a+i a \tan (c+d x))^2}+\frac{\int \cot ^2(c+d x) \left (18 a^2-16 i a^2 \tan (c+d x)\right ) \, dx}{8 a^4}\\ &=-\frac{9 \cot (c+d x)}{4 a^2 d}+\frac{\cot (c+d x)}{a^2 d (1+i \tan (c+d x))}+\frac{\cot (c+d x)}{4 d (a+i a \tan (c+d x))^2}+\frac{\int \cot (c+d x) \left (-16 i a^2-18 a^2 \tan (c+d x)\right ) \, dx}{8 a^4}\\ &=-\frac{9 x}{4 a^2}-\frac{9 \cot (c+d x)}{4 a^2 d}+\frac{\cot (c+d x)}{a^2 d (1+i \tan (c+d x))}+\frac{\cot (c+d x)}{4 d (a+i a \tan (c+d x))^2}-\frac{(2 i) \int \cot (c+d x) \, dx}{a^2}\\ &=-\frac{9 x}{4 a^2}-\frac{9 \cot (c+d x)}{4 a^2 d}-\frac{2 i \log (\sin (c+d x))}{a^2 d}+\frac{\cot (c+d x)}{a^2 d (1+i \tan (c+d x))}+\frac{\cot (c+d x)}{4 d (a+i a \tan (c+d x))^2}\\ \end{align*}
Mathematica [B] time = 1.69457, size = 276, normalized size = 2.85 \[ -\frac{\sec ^2(c+d x) (\cos (d x)+i \sin (d x))^2 \left (-36 i d x \sin (2 c)+i \sin (2 c) \sin (4 d x)+64 d x \cos ^2(c)+32 i d x \cot (c)+16 \sin (2 c) \log \left (\sin ^2(c+d x)\right )-\sin (2 c) \cos (4 d x)+8 i \csc (c) \cos (2 c-d x) \csc (c+d x)-8 i \csc (c) \cos (2 c+d x) \csc (c+d x)-8 \csc (c) \sin (2 c-d x) \csc (c+d x)+8 \csc (c) \sin (2 c+d x) \csc (c+d x)-32 (\cos (2 c)+i \sin (2 c)) \tan ^{-1}(\tan (d x))-i \cos (2 c) \left (32 d x \cot (c)-i \left (16 i \log \left (\sin ^2(c+d x)\right )+36 d x+\sin (4 d x)\right )+\cos (4 d x)\right )-32 d x-12 \sin (2 d x)-12 i \cos (2 d x)\right )}{16 a^2 d (\tan (c+d x)-i)^2} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.071, size = 111, normalized size = 1.1 \begin{align*}{\frac{{\frac{i}{4}}}{{a}^{2}d \left ( \tan \left ( dx+c \right ) -i \right ) ^{2}}}+{\frac{{\frac{17\,i}{8}}\ln \left ( \tan \left ( dx+c \right ) -i \right ) }{{a}^{2}d}}-{\frac{5}{4\,{a}^{2}d \left ( \tan \left ( dx+c \right ) -i \right ) }}-{\frac{{\frac{i}{8}}\ln \left ( \tan \left ( dx+c \right ) +i \right ) }{{a}^{2}d}}-{\frac{1}{{a}^{2}d\tan \left ( dx+c \right ) }}-{\frac{2\,i\ln \left ( \tan \left ( dx+c \right ) \right ) }{{a}^{2}d}} \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: RuntimeError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 2.27193, size = 333, normalized size = 3.43 \begin{align*} -\frac{68 \, d x e^{\left (6 i \, d x + 6 i \, c\right )} -{\left (68 \, d x - 44 i\right )} e^{\left (4 i \, d x + 4 i \, c\right )} -{\left (-32 i \, e^{\left (6 i \, d x + 6 i \, c\right )} + 32 i \, e^{\left (4 i \, d x + 4 i \, c\right )}\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} - 1\right ) - 11 i \, e^{\left (2 i \, d x + 2 i \, c\right )} - i}{16 \,{\left (a^{2} d e^{\left (6 i \, d x + 6 i \, c\right )} - a^{2} d e^{\left (4 i \, d x + 4 i \, c\right )}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [A] time = 3.85442, size = 136, normalized size = 1.4 \begin{align*} - \frac{\left (\begin{cases} 17 x e^{4 i c} + \frac{3 i e^{2 i c} e^{- 2 i d x}}{d} + \frac{i e^{- 4 i d x}}{4 d} & \text{for}\: d \neq 0 \\x \left (17 e^{4 i c} + 6 e^{2 i c} + 1\right ) & \text{otherwise} \end{cases}\right ) e^{- 4 i c}}{4 a^{2}} - \frac{2 i \log{\left (e^{2 i d x} - e^{- 2 i c} \right )}}{a^{2} d} - \frac{2 i e^{- 2 i c}}{a^{2} d \left (e^{2 i d x} - e^{- 2 i c}\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A] time = 1.31388, size = 147, normalized size = 1.52 \begin{align*} -\frac{\frac{32 i \, \log \left (i \, \tan \left (d x + c\right )\right )}{a^{2}} - \frac{34 i \, \log \left (i \, \tan \left (d x + c\right ) + 1\right )}{a^{2}} + \frac{2 i \, \log \left (-i \, \tan \left (d x + c\right ) + 1\right )}{a^{2}} + \frac{16 \,{\left (-2 i \, \tan \left (d x + c\right ) + 1\right )}}{a^{2} \tan \left (d x + c\right )} + \frac{51 i \, \tan \left (d x + c\right )^{2} + 122 \, \tan \left (d x + c\right ) - 75 i}{a^{2}{\left (\tan \left (d x + c\right ) - i\right )}^{2}}}{16 \, d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]