Integrand size = 18, antiderivative size = 15 \[ \int \cos ^2(a+b x) \sin (2 a+2 b x) \, dx=-\frac {\cos ^4(a+b x)}{2 b} \]
[Out]
Time = 0.04 (sec) , antiderivative size = 15, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {4372, 2645, 30} \[ \int \cos ^2(a+b x) \sin (2 a+2 b x) \, dx=-\frac {\cos ^4(a+b x)}{2 b} \]
[In]
[Out]
Rule 30
Rule 2645
Rule 4372
Rubi steps \begin{align*} \text {integral}& = 2 \int \cos ^3(a+b x) \sin (a+b x) \, dx \\ & = -\frac {2 \text {Subst}\left (\int x^3 \, dx,x,\cos (a+b x)\right )}{b} \\ & = -\frac {\cos ^4(a+b x)}{2 b} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 15, normalized size of antiderivative = 1.00 \[ \int \cos ^2(a+b x) \sin (2 a+2 b x) \, dx=-\frac {\cos ^4(a+b x)}{2 b} \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. \(29\) vs. \(2(13)=26\).
Time = 0.35 (sec) , antiderivative size = 30, normalized size of antiderivative = 2.00
method | result | size |
default | \(-\frac {\cos \left (2 x b +2 a \right )}{4 b}-\frac {\cos \left (4 x b +4 a \right )}{16 b}\) | \(30\) |
risch | \(-\frac {\cos \left (2 x b +2 a \right )}{4 b}-\frac {\cos \left (4 x b +4 a \right )}{16 b}\) | \(30\) |
parallelrisch | \(\frac {\tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{4} \tan \left (x b +a \right ) x b +\left (-2 \tan \left (x b +a \right )^{2} x b +2 x b -6 \tan \left (x b +a \right )\right ) \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{3}+\left (-6 \tan \left (x b +a \right ) x b +4 \tan \left (x b +a \right )^{2}-4\right ) \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{2}+\left (2 \tan \left (x b +a \right )^{2} x b -2 x b +6 \tan \left (x b +a \right )\right ) \tan \left (\frac {a}{2}+\frac {x b}{2}\right )+\tan \left (x b +a \right ) x b}{2 b \left (1+\tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{2}\right )^{2} \left (1+\tan \left (x b +a \right )^{2}\right )}\) | \(169\) |
norman | \(\frac {x \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{3}+x \tan \left (\frac {a}{2}+\frac {x b}{2}\right ) \tan \left (x b +a \right )^{2}+\frac {3 \tan \left (\frac {a}{2}+\frac {x b}{2}\right ) \tan \left (x b +a \right )}{b}-x \tan \left (\frac {a}{2}+\frac {x b}{2}\right )+\frac {x \tan \left (x b +a \right )}{2}-3 x \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{2} \tan \left (x b +a \right )-x \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{3} \tan \left (x b +a \right )^{2}+\frac {x \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{4} \tan \left (x b +a \right )}{2}-\frac {2 \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{2}}{b}+\frac {2 \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{2} \tan \left (x b +a \right )^{2}}{b}-\frac {3 \tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{3} \tan \left (x b +a \right )}{b}}{\left (1+\tan \left (\frac {a}{2}+\frac {x b}{2}\right )^{2}\right )^{2} \left (1+\tan \left (x b +a \right )^{2}\right )}\) | \(227\) |
[In]
[Out]
none
Time = 0.24 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.87 \[ \int \cos ^2(a+b x) \sin (2 a+2 b x) \, dx=-\frac {\cos \left (b x + a\right )^{4}}{2 \, b} \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 133 vs. \(2 (12) = 24\).
Time = 0.37 (sec) , antiderivative size = 133, normalized size of antiderivative = 8.87 \[ \int \cos ^2(a+b x) \sin (2 a+2 b x) \, dx=\begin {cases} - \frac {x \sin ^{2}{\left (a + b x \right )} \sin {\left (2 a + 2 b x \right )}}{4} - \frac {x \sin {\left (a + b x \right )} \cos {\left (a + b x \right )} \cos {\left (2 a + 2 b x \right )}}{2} + \frac {x \sin {\left (2 a + 2 b x \right )} \cos ^{2}{\left (a + b x \right )}}{4} - \frac {\sin ^{2}{\left (a + b x \right )} \cos {\left (2 a + 2 b x \right )}}{2 b} + \frac {3 \sin {\left (a + b x \right )} \sin {\left (2 a + 2 b x \right )} \cos {\left (a + b x \right )}}{4 b} & \text {for}\: b \neq 0 \\x \sin {\left (2 a \right )} \cos ^{2}{\left (a \right )} & \text {otherwise} \end {cases} \]
[In]
[Out]
none
Time = 0.22 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.73 \[ \int \cos ^2(a+b x) \sin (2 a+2 b x) \, dx=-\frac {\cos \left (4 \, b x + 4 \, a\right ) + 4 \, \cos \left (2 \, b x + 2 \, a\right )}{16 \, b} \]
[In]
[Out]
none
Time = 0.28 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.87 \[ \int \cos ^2(a+b x) \sin (2 a+2 b x) \, dx=-\frac {\cos \left (b x + a\right )^{4}}{2 \, b} \]
[In]
[Out]
Time = 0.05 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.87 \[ \int \cos ^2(a+b x) \sin (2 a+2 b x) \, dx=-\frac {{\cos \left (a+b\,x\right )}^4}{2\,b} \]
[In]
[Out]