Integrand size = 28, antiderivative size = 58 \[ \int \frac {\frac {b B}{a}+B \tan (c+d x)}{a+b \tan (c+d x)} \, dx=\frac {2 b B x}{a^2+b^2}-\frac {\left (a-\frac {b^2}{a}\right ) B \log (a \cos (c+d x)+b \sin (c+d x))}{\left (a^2+b^2\right ) d} \]
[Out]
Time = 0.09 (sec) , antiderivative size = 58, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.071, Rules used = {3612, 3611} \[ \int \frac {\frac {b B}{a}+B \tan (c+d x)}{a+b \tan (c+d x)} \, dx=\frac {2 b B x}{a^2+b^2}-\frac {B \left (a-\frac {b^2}{a}\right ) \log (a \cos (c+d x)+b \sin (c+d x))}{d \left (a^2+b^2\right )} \]
[In]
[Out]
Rule 3611
Rule 3612
Rubi steps \begin{align*} \text {integral}& = \frac {2 b B x}{a^2+b^2}-\frac {\left (\left (a-\frac {b^2}{a}\right ) B\right ) \int \frac {b-a \tan (c+d x)}{a+b \tan (c+d x)} \, dx}{a^2+b^2} \\ & = \frac {2 b B x}{a^2+b^2}-\frac {\left (a-\frac {b^2}{a}\right ) B \log (a \cos (c+d x)+b \sin (c+d x))}{\left (a^2+b^2\right ) d} \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 65, normalized size of antiderivative = 1.12 \[ \int \frac {\frac {b B}{a}+B \tan (c+d x)}{a+b \tan (c+d x)} \, dx=\frac {B \left (4 a b \arctan (\tan (c+d x))+\left (a^2-b^2\right ) \left (\log \left (\sec ^2(c+d x)\right )-2 \log (a+b \tan (c+d x))\right )\right )}{2 a \left (a^2+b^2\right ) d} \]
[In]
[Out]
Time = 0.05 (sec) , antiderivative size = 85, normalized size of antiderivative = 1.47
method | result | size |
derivativedivides | \(\frac {B \left (\frac {\frac {\left (a^{2}-b^{2}\right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}+2 a b \arctan \left (\tan \left (d x +c \right )\right )}{a^{2}+b^{2}}-\frac {\left (a^{2}-b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{a^{2}+b^{2}}\right )}{d a}\) | \(85\) |
default | \(\frac {B \left (\frac {\frac {\left (a^{2}-b^{2}\right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}+2 a b \arctan \left (\tan \left (d x +c \right )\right )}{a^{2}+b^{2}}-\frac {\left (a^{2}-b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{a^{2}+b^{2}}\right )}{d a}\) | \(85\) |
norman | \(\frac {2 b B x}{a^{2}+b^{2}}+\frac {B \left (a^{2}-b^{2}\right ) \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2 a d \left (a^{2}+b^{2}\right )}-\frac {B \left (a^{2}-b^{2}\right ) \ln \left (a +b \tan \left (d x +c \right )\right )}{a d \left (a^{2}+b^{2}\right )}\) | \(92\) |
parallelrisch | \(\frac {4 B a b d x +B \ln \left (1+\tan ^{2}\left (d x +c \right )\right ) a^{2}-B \ln \left (1+\tan ^{2}\left (d x +c \right )\right ) b^{2}-2 B \ln \left (a +b \tan \left (d x +c \right )\right ) a^{2}+2 B \,b^{2} \ln \left (a +b \tan \left (d x +c \right )\right )}{2 a d \left (a^{2}+b^{2}\right )}\) | \(93\) |
risch | \(-\frac {x B b}{a \left (i b -a \right )}+\frac {i x B}{i b -a}+\frac {2 i B x a}{a^{2}+b^{2}}-\frac {2 i b^{2} B x}{a \left (a^{2}+b^{2}\right )}+\frac {2 i B a c}{d \left (a^{2}+b^{2}\right )}-\frac {2 i b^{2} B c}{a d \left (a^{2}+b^{2}\right )}-\frac {\ln \left ({\mathrm e}^{2 i \left (d x +c \right )}-\frac {i b +a}{i b -a}\right ) B a}{d \left (a^{2}+b^{2}\right )}+\frac {b^{2} \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}-\frac {i b +a}{i b -a}\right ) B}{a d \left (a^{2}+b^{2}\right )}\) | \(205\) |
[In]
[Out]
none
Time = 0.29 (sec) , antiderivative size = 78, normalized size of antiderivative = 1.34 \[ \int \frac {\frac {b B}{a}+B \tan (c+d x)}{a+b \tan (c+d x)} \, dx=\frac {4 \, B a b d x - {\left (B a^{2} - B b^{2}\right )} \log \left (\frac {b^{2} \tan \left (d x + c\right )^{2} + 2 \, a b \tan \left (d x + c\right ) + a^{2}}{\tan \left (d x + c\right )^{2} + 1}\right )}{2 \, {\left (a^{3} + a b^{2}\right )} d} \]
[In]
[Out]
Result contains complex when optimal does not.
Time = 0.45 (sec) , antiderivative size = 235, normalized size of antiderivative = 4.05 \[ \int \frac {\frac {b B}{a}+B \tan (c+d x)}{a+b \tan (c+d x)} \, dx=\begin {cases} \text {NaN} & \text {for}\: a = 0 \wedge b = 0 \wedge d = 0 \\\frac {B \log {\left (\tan ^{2}{\left (c + d x \right )} + 1 \right )}}{2 a d} & \text {for}\: b = 0 \\- \frac {B}{b d \tan {\left (c + d x \right )} - i b d} & \text {for}\: a = - i b \\- \frac {B}{b d \tan {\left (c + d x \right )} + i b d} & \text {for}\: a = i b \\\frac {x \left (B \tan {\left (c \right )} + \frac {B b}{a}\right )}{a + b \tan {\left (c \right )}} & \text {for}\: d = 0 \\- \frac {2 B a^{2} \log {\left (\frac {a}{b} + \tan {\left (c + d x \right )} \right )}}{2 a^{3} d + 2 a b^{2} d} + \frac {B a^{2} \log {\left (\tan ^{2}{\left (c + d x \right )} + 1 \right )}}{2 a^{3} d + 2 a b^{2} d} + \frac {4 B a b d x}{2 a^{3} d + 2 a b^{2} d} + \frac {2 B b^{2} \log {\left (\frac {a}{b} + \tan {\left (c + d x \right )} \right )}}{2 a^{3} d + 2 a b^{2} d} - \frac {B b^{2} \log {\left (\tan ^{2}{\left (c + d x \right )} + 1 \right )}}{2 a^{3} d + 2 a b^{2} d} & \text {otherwise} \end {cases} \]
[In]
[Out]
none
Time = 0.28 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.64 \[ \int \frac {\frac {b B}{a}+B \tan (c+d x)}{a+b \tan (c+d x)} \, dx=\frac {\frac {4 \, {\left (d x + c\right )} B b}{a^{2} + b^{2}} - \frac {2 \, {\left (B a^{2} - B b^{2}\right )} \log \left (b \tan \left (d x + c\right ) + a\right )}{a^{3} + a b^{2}} + \frac {{\left (B a^{2} - B b^{2}\right )} \log \left (\tan \left (d x + c\right )^{2} + 1\right )}{a^{3} + a b^{2}}}{2 \, d} \]
[In]
[Out]
none
Time = 0.36 (sec) , antiderivative size = 99, normalized size of antiderivative = 1.71 \[ \int \frac {\frac {b B}{a}+B \tan (c+d x)}{a+b \tan (c+d x)} \, dx=\frac {\frac {4 \, {\left (d x + c\right )} B b}{a^{2} + b^{2}} + \frac {{\left (B a^{2} - B b^{2}\right )} \log \left (\tan \left (d x + c\right )^{2} + 1\right )}{a^{3} + a b^{2}} - \frac {2 \, {\left (B a^{2} b - B b^{3}\right )} \log \left ({\left | b \tan \left (d x + c\right ) + a \right |}\right )}{a^{3} b + a b^{3}}}{2 \, d} \]
[In]
[Out]
Time = 8.68 (sec) , antiderivative size = 112, normalized size of antiderivative = 1.93 \[ \int \frac {\frac {b B}{a}+B \tan (c+d x)}{a+b \tan (c+d x)} \, dx=-\frac {\ln \left (\mathrm {tan}\left (c+d\,x\right )-\mathrm {i}\right )\,\left (B\,b+B\,a\,1{}\mathrm {i}\right )}{2\,d\,\left (a\,b-a^2\,1{}\mathrm {i}\right )}-\frac {\ln \left (\mathrm {tan}\left (c+d\,x\right )+1{}\mathrm {i}\right )\,\left (B\,a+B\,b\,1{}\mathrm {i}\right )}{2\,d\,\left (-a^2+a\,b\,1{}\mathrm {i}\right )}-\frac {B\,\ln \left (a+b\,\mathrm {tan}\left (c+d\,x\right )\right )\,\left (a^2-b^2\right )}{a\,d\,\left (a^2+b^2\right )} \]
[In]
[Out]