Integrand size = 19, antiderivative size = 28 \[ \int \cos (c+d x) \left (a+b \tan ^2(c+d x)\right ) \, dx=\frac {b \text {arctanh}(\sin (c+d x))}{d}+\frac {(a-b) \sin (c+d x)}{d} \]
[Out]
Time = 0.04 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.158, Rules used = {3757, 396, 212} \[ \int \cos (c+d x) \left (a+b \tan ^2(c+d x)\right ) \, dx=\frac {(a-b) \sin (c+d x)}{d}+\frac {b \text {arctanh}(\sin (c+d x))}{d} \]
[In]
[Out]
Rule 212
Rule 396
Rule 3757
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \frac {a-(a-b) x^2}{1-x^2} \, dx,x,\sin (c+d x)\right )}{d} \\ & = \frac {(a-b) \sin (c+d x)}{d}+\frac {b \text {Subst}\left (\int \frac {1}{1-x^2} \, dx,x,\sin (c+d x)\right )}{d} \\ & = \frac {b \text {arctanh}(\sin (c+d x))}{d}+\frac {(a-b) \sin (c+d x)}{d} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.68 \[ \int \cos (c+d x) \left (a+b \tan ^2(c+d x)\right ) \, dx=\frac {b \text {arctanh}(\sin (c+d x))}{d}+\frac {a \cos (d x) \sin (c)}{d}+\frac {a \cos (c) \sin (d x)}{d}-\frac {b \sin (c+d x)}{d} \]
[In]
[Out]
Time = 0.28 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.39
method | result | size |
derivativedivides | \(\frac {b \left (-\sin \left (d x +c \right )+\ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )\right )+\sin \left (d x +c \right ) a}{d}\) | \(39\) |
default | \(\frac {b \left (-\sin \left (d x +c \right )+\ln \left (\sec \left (d x +c \right )+\tan \left (d x +c \right )\right )\right )+\sin \left (d x +c \right ) a}{d}\) | \(39\) |
risch | \(-\frac {i {\mathrm e}^{i \left (d x +c \right )} a}{2 d}+\frac {i {\mathrm e}^{i \left (d x +c \right )} b}{2 d}+\frac {i {\mathrm e}^{-i \left (d x +c \right )} a}{2 d}-\frac {i {\mathrm e}^{-i \left (d x +c \right )} b}{2 d}+\frac {\ln \left ({\mathrm e}^{i \left (d x +c \right )}+i\right ) b}{d}-\frac {\ln \left ({\mathrm e}^{i \left (d x +c \right )}-i\right ) b}{d}\) | \(103\) |
[In]
[Out]
none
Time = 0.29 (sec) , antiderivative size = 44, normalized size of antiderivative = 1.57 \[ \int \cos (c+d x) \left (a+b \tan ^2(c+d x)\right ) \, dx=\frac {b \log \left (\sin \left (d x + c\right ) + 1\right ) - b \log \left (-\sin \left (d x + c\right ) + 1\right ) + 2 \, {\left (a - b\right )} \sin \left (d x + c\right )}{2 \, d} \]
[In]
[Out]
\[ \int \cos (c+d x) \left (a+b \tan ^2(c+d x)\right ) \, dx=\int \left (a + b \tan ^{2}{\left (c + d x \right )}\right ) \cos {\left (c + d x \right )}\, dx \]
[In]
[Out]
none
Time = 0.23 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.64 \[ \int \cos (c+d x) \left (a+b \tan ^2(c+d x)\right ) \, dx=\frac {b {\left (\log \left (\sin \left (d x + c\right ) + 1\right ) - \log \left (\sin \left (d x + c\right ) - 1\right ) - 2 \, \sin \left (d x + c\right )\right )} + 2 \, a \sin \left (d x + c\right )}{2 \, d} \]
[In]
[Out]
none
Time = 0.41 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.71 \[ \int \cos (c+d x) \left (a+b \tan ^2(c+d x)\right ) \, dx=\frac {b {\left (\log \left ({\left | \sin \left (d x + c\right ) + 1 \right |}\right ) - \log \left ({\left | \sin \left (d x + c\right ) - 1 \right |}\right ) - 2 \, \sin \left (d x + c\right )\right )} + 2 \, a \sin \left (d x + c\right )}{2 \, d} \]
[In]
[Out]
Time = 12.08 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.14 \[ \int \cos (c+d x) \left (a+b \tan ^2(c+d x)\right ) \, dx=\frac {\sin \left (c+d\,x\right )\,\left (a-b\right )}{d}+\frac {2\,b\,\mathrm {atanh}\left (\mathrm {tan}\left (\frac {c}{2}+\frac {d\,x}{2}\right )\right )}{d} \]
[In]
[Out]