Integrand size = 31, antiderivative size = 89 \[ \int \frac {\cos ^2(c+d x)}{(a \cos (c+d x)+i a \sin (c+d x))^2} \, dx=\frac {x}{4 a^2}+\frac {i \cos ^2(c+d x)}{4 d (a \cos (c+d x)+i a \sin (c+d x))^2}+\frac {i \cos (c+d x)}{4 d \left (a^2 \cos (c+d x)+i a^2 \sin (c+d x)\right )} \]
[Out]
Time = 0.09 (sec) , antiderivative size = 89, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.065, Rules used = {3161, 8} \[ \int \frac {\cos ^2(c+d x)}{(a \cos (c+d x)+i a \sin (c+d x))^2} \, dx=\frac {i \cos (c+d x)}{4 d \left (a^2 \cos (c+d x)+i a^2 \sin (c+d x)\right )}+\frac {x}{4 a^2}+\frac {i \cos ^2(c+d x)}{4 d (a \cos (c+d x)+i a \sin (c+d x))^2} \]
[In]
[Out]
Rule 8
Rule 3161
Rubi steps \begin{align*} \text {integral}& = \frac {i \cos ^2(c+d x)}{4 d (a \cos (c+d x)+i a \sin (c+d x))^2}+\frac {\int \frac {\cos (c+d x)}{a \cos (c+d x)+i a \sin (c+d x)} \, dx}{2 a} \\ & = \frac {i \cos ^2(c+d x)}{4 d (a \cos (c+d x)+i a \sin (c+d x))^2}+\frac {i \cos (c+d x)}{4 d \left (a^2 \cos (c+d x)+i a^2 \sin (c+d x)\right )}+\frac {\int 1 \, dx}{4 a^2} \\ & = \frac {x}{4 a^2}+\frac {i \cos ^2(c+d x)}{4 d (a \cos (c+d x)+i a \sin (c+d x))^2}+\frac {i \cos (c+d x)}{4 d \left (a^2 \cos (c+d x)+i a^2 \sin (c+d x)\right )} \\ \end{align*}
Time = 0.73 (sec) , antiderivative size = 60, normalized size of antiderivative = 0.67 \[ \int \frac {\cos ^2(c+d x)}{(a \cos (c+d x)+i a \sin (c+d x))^2} \, dx=\frac {4 c+4 d x+4 i \cos (2 (c+d x))+i \cos (4 (c+d x))+4 \sin (2 (c+d x))+\sin (4 (c+d x))}{16 a^2 d} \]
[In]
[Out]
Time = 0.57 (sec) , antiderivative size = 44, normalized size of antiderivative = 0.49
method | result | size |
risch | \(\frac {x}{4 a^{2}}+\frac {i {\mathrm e}^{-2 i \left (d x +c \right )}}{4 a^{2} d}+\frac {i {\mathrm e}^{-4 i \left (d x +c \right )}}{16 a^{2} d}\) | \(44\) |
derivativedivides | \(\frac {\frac {i \ln \left (\tan \left (d x +c \right )+i\right )}{8}-\frac {i \ln \left (\tan \left (d x +c \right )-i\right )}{8}-\frac {i}{4 \left (\tan \left (d x +c \right )-i\right )^{2}}+\frac {1}{4 \tan \left (d x +c \right )-4 i}}{d \,a^{2}}\) | \(62\) |
default | \(\frac {\frac {i \ln \left (\tan \left (d x +c \right )+i\right )}{8}-\frac {i \ln \left (\tan \left (d x +c \right )-i\right )}{8}-\frac {i}{4 \left (\tan \left (d x +c \right )-i\right )^{2}}+\frac {1}{4 \tan \left (d x +c \right )-4 i}}{d \,a^{2}}\) | \(62\) |
[In]
[Out]
none
Time = 0.23 (sec) , antiderivative size = 43, normalized size of antiderivative = 0.48 \[ \int \frac {\cos ^2(c+d x)}{(a \cos (c+d x)+i a \sin (c+d x))^2} \, dx=\frac {{\left (4 \, d x e^{\left (4 i \, d x + 4 i \, c\right )} + 4 i \, e^{\left (2 i \, d x + 2 i \, c\right )} + i\right )} e^{\left (-4 i \, d x - 4 i \, c\right )}}{16 \, a^{2} d} \]
[In]
[Out]
Time = 0.14 (sec) , antiderivative size = 117, normalized size of antiderivative = 1.31 \[ \int \frac {\cos ^2(c+d x)}{(a \cos (c+d x)+i a \sin (c+d x))^2} \, dx=\begin {cases} \frac {\left (16 i a^{2} d e^{4 i c} e^{- 2 i d x} + 4 i a^{2} d e^{2 i c} e^{- 4 i d x}\right ) e^{- 6 i c}}{64 a^{4} d^{2}} & \text {for}\: a^{4} d^{2} e^{6 i c} \neq 0 \\x \left (\frac {\left (e^{4 i c} + 2 e^{2 i c} + 1\right ) e^{- 4 i c}}{4 a^{2}} - \frac {1}{4 a^{2}}\right ) & \text {otherwise} \end {cases} + \frac {x}{4 a^{2}} \]
[In]
[Out]
Exception generated. \[ \int \frac {\cos ^2(c+d x)}{(a \cos (c+d x)+i a \sin (c+d x))^2} \, dx=\text {Exception raised: RuntimeError} \]
[In]
[Out]
none
Time = 0.32 (sec) , antiderivative size = 68, normalized size of antiderivative = 0.76 \[ \int \frac {\cos ^2(c+d x)}{(a \cos (c+d x)+i a \sin (c+d x))^2} \, dx=-\frac {-\frac {2 i \, \log \left (\tan \left (d x + c\right ) + i\right )}{a^{2}} + \frac {2 i \, \log \left (\tan \left (d x + c\right ) - i\right )}{a^{2}} + \frac {-3 i \, \tan \left (d x + c\right )^{2} - 10 \, \tan \left (d x + c\right ) + 11 i}{a^{2} {\left (\tan \left (d x + c\right ) - i\right )}^{2}}}{16 \, d} \]
[In]
[Out]
Time = 24.89 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.78 \[ \int \frac {\cos ^2(c+d x)}{(a \cos (c+d x)+i a \sin (c+d x))^2} \, dx=\frac {x}{4\,a^2}+\frac {-\frac {3\,{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^3}{2}+{\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}^2\,2{}\mathrm {i}+\frac {3\,\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )}{2}}{a^2\,d\,{\left (1+\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )\,1{}\mathrm {i}\right )}^4} \]
[In]
[Out]