Integrand size = 16, antiderivative size = 167 \[ \int x \cos \left (a+b \sqrt {c+d x}\right ) \, dx=-\frac {12 \cos \left (a+b \sqrt {c+d x}\right )}{b^4 d^2}-\frac {2 c \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}+\frac {6 (c+d x) \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}-\frac {12 \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b^3 d^2}-\frac {2 c \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}+\frac {2 (c+d x)^{3/2} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2} \]
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Time = 0.16 (sec) , antiderivative size = 167, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.188, Rules used = {3513, 3377, 2718} \[ \int x \cos \left (a+b \sqrt {c+d x}\right ) \, dx=-\frac {12 \cos \left (a+b \sqrt {c+d x}\right )}{b^4 d^2}-\frac {12 \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b^3 d^2}+\frac {6 (c+d x) \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}-\frac {2 c \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}+\frac {2 (c+d x)^{3/2} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}-\frac {2 c \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2} \]
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Rule 2718
Rule 3377
Rule 3513
Rubi steps \begin{align*} \text {integral}& = \frac {2 \text {Subst}\left (\int \left (-\frac {c x \cos (a+b x)}{d}+\frac {x^3 \cos (a+b x)}{d}\right ) \, dx,x,\sqrt {c+d x}\right )}{d} \\ & = \frac {2 \text {Subst}\left (\int x^3 \cos (a+b x) \, dx,x,\sqrt {c+d x}\right )}{d^2}-\frac {(2 c) \text {Subst}\left (\int x \cos (a+b x) \, dx,x,\sqrt {c+d x}\right )}{d^2} \\ & = -\frac {2 c \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}+\frac {2 (c+d x)^{3/2} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}-\frac {6 \text {Subst}\left (\int x^2 \sin (a+b x) \, dx,x,\sqrt {c+d x}\right )}{b d^2}+\frac {(2 c) \text {Subst}\left (\int \sin (a+b x) \, dx,x,\sqrt {c+d x}\right )}{b d^2} \\ & = -\frac {2 c \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}+\frac {6 (c+d x) \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}-\frac {2 c \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}+\frac {2 (c+d x)^{3/2} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}-\frac {12 \text {Subst}\left (\int x \cos (a+b x) \, dx,x,\sqrt {c+d x}\right )}{b^2 d^2} \\ & = -\frac {2 c \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}+\frac {6 (c+d x) \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}-\frac {12 \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b^3 d^2}-\frac {2 c \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}+\frac {2 (c+d x)^{3/2} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}+\frac {12 \text {Subst}\left (\int \sin (a+b x) \, dx,x,\sqrt {c+d x}\right )}{b^3 d^2} \\ & = -\frac {12 \cos \left (a+b \sqrt {c+d x}\right )}{b^4 d^2}-\frac {2 c \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}+\frac {6 (c+d x) \cos \left (a+b \sqrt {c+d x}\right )}{b^2 d^2}-\frac {12 \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b^3 d^2}-\frac {2 c \sqrt {c+d x} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2}+\frac {2 (c+d x)^{3/2} \sin \left (a+b \sqrt {c+d x}\right )}{b d^2} \\ \end{align*}
Time = 0.37 (sec) , antiderivative size = 71, normalized size of antiderivative = 0.43 \[ \int x \cos \left (a+b \sqrt {c+d x}\right ) \, dx=\frac {2 \left (\left (-6+b^2 (2 c+3 d x)\right ) \cos \left (a+b \sqrt {c+d x}\right )+b \sqrt {c+d x} \left (-6+b^2 d x\right ) \sin \left (a+b \sqrt {c+d x}\right )\right )}{b^4 d^2} \]
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Time = 1.59 (sec) , antiderivative size = 297, normalized size of antiderivative = 1.78
method | result | size |
parts | \(\frac {2 x \sqrt {d x +c}\, \sin \left (a +b \sqrt {d x +c}\right )}{d b}+\frac {2 x \cos \left (a +b \sqrt {d x +c}\right )}{d \,b^{2}}-\frac {2 \left (\frac {-2 \left (a +b \sqrt {d x +c}\right )^{2} \cos \left (a +b \sqrt {d x +c}\right )+4 \cos \left (a +b \sqrt {d x +c}\right )+4 \left (a +b \sqrt {d x +c}\right ) \sin \left (a +b \sqrt {d x +c}\right )-2 a \left (\sin \left (a +b \sqrt {d x +c}\right )-\left (a +b \sqrt {d x +c}\right ) \cos \left (a +b \sqrt {d x +c}\right )\right )}{b^{2} d}-\frac {2 a \left (\sin \left (a +b \sqrt {d x +c}\right )-\left (a +b \sqrt {d x +c}\right ) \cos \left (a +b \sqrt {d x +c}\right )+a \cos \left (a +b \sqrt {d x +c}\right )\right )}{d \,b^{2}}+\frac {2 \cos \left (a +b \sqrt {d x +c}\right )+2 \left (a +b \sqrt {d x +c}\right ) \sin \left (a +b \sqrt {d x +c}\right )-2 a \sin \left (a +b \sqrt {d x +c}\right )}{b^{2} d}\right )}{d \,b^{2}}\) | \(297\) |
derivativedivides | \(\frac {2 a c \sin \left (a +b \sqrt {d x +c}\right )-2 c \left (\cos \left (a +b \sqrt {d x +c}\right )+\left (a +b \sqrt {d x +c}\right ) \sin \left (a +b \sqrt {d x +c}\right )\right )-\frac {2 a^{3} \sin \left (a +b \sqrt {d x +c}\right )}{b^{2}}+\frac {6 a^{2} \left (\cos \left (a +b \sqrt {d x +c}\right )+\left (a +b \sqrt {d x +c}\right ) \sin \left (a +b \sqrt {d x +c}\right )\right )}{b^{2}}-\frac {6 a \left (\left (a +b \sqrt {d x +c}\right )^{2} \sin \left (a +b \sqrt {d x +c}\right )-2 \sin \left (a +b \sqrt {d x +c}\right )+2 \left (a +b \sqrt {d x +c}\right ) \cos \left (a +b \sqrt {d x +c}\right )\right )}{b^{2}}+\frac {2 \left (\left (a +b \sqrt {d x +c}\right )^{3} \sin \left (a +b \sqrt {d x +c}\right )+3 \left (a +b \sqrt {d x +c}\right )^{2} \cos \left (a +b \sqrt {d x +c}\right )-6 \cos \left (a +b \sqrt {d x +c}\right )-6 \left (a +b \sqrt {d x +c}\right ) \sin \left (a +b \sqrt {d x +c}\right )\right )}{b^{2}}}{b^{2} d^{2}}\) | \(299\) |
default | \(\frac {2 a c \sin \left (a +b \sqrt {d x +c}\right )-2 c \left (\cos \left (a +b \sqrt {d x +c}\right )+\left (a +b \sqrt {d x +c}\right ) \sin \left (a +b \sqrt {d x +c}\right )\right )-\frac {2 a^{3} \sin \left (a +b \sqrt {d x +c}\right )}{b^{2}}+\frac {6 a^{2} \left (\cos \left (a +b \sqrt {d x +c}\right )+\left (a +b \sqrt {d x +c}\right ) \sin \left (a +b \sqrt {d x +c}\right )\right )}{b^{2}}-\frac {6 a \left (\left (a +b \sqrt {d x +c}\right )^{2} \sin \left (a +b \sqrt {d x +c}\right )-2 \sin \left (a +b \sqrt {d x +c}\right )+2 \left (a +b \sqrt {d x +c}\right ) \cos \left (a +b \sqrt {d x +c}\right )\right )}{b^{2}}+\frac {2 \left (\left (a +b \sqrt {d x +c}\right )^{3} \sin \left (a +b \sqrt {d x +c}\right )+3 \left (a +b \sqrt {d x +c}\right )^{2} \cos \left (a +b \sqrt {d x +c}\right )-6 \cos \left (a +b \sqrt {d x +c}\right )-6 \left (a +b \sqrt {d x +c}\right ) \sin \left (a +b \sqrt {d x +c}\right )\right )}{b^{2}}}{b^{2} d^{2}}\) | \(299\) |
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Time = 0.25 (sec) , antiderivative size = 67, normalized size of antiderivative = 0.40 \[ \int x \cos \left (a+b \sqrt {c+d x}\right ) \, dx=\frac {2 \, {\left ({\left (b^{3} d x - 6 \, b\right )} \sqrt {d x + c} \sin \left (\sqrt {d x + c} b + a\right ) + {\left (3 \, b^{2} d x + 2 \, b^{2} c - 6\right )} \cos \left (\sqrt {d x + c} b + a\right )\right )}}{b^{4} d^{2}} \]
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Time = 0.23 (sec) , antiderivative size = 151, normalized size of antiderivative = 0.90 \[ \int x \cos \left (a+b \sqrt {c+d x}\right ) \, dx=\begin {cases} \frac {x^{2} \cos {\left (a \right )}}{2} & \text {for}\: b = 0 \wedge \left (b = 0 \vee d = 0\right ) \\\frac {x^{2} \cos {\left (a + b \sqrt {c} \right )}}{2} & \text {for}\: d = 0 \\\frac {2 x \sqrt {c + d x} \sin {\left (a + b \sqrt {c + d x} \right )}}{b d} + \frac {4 c \cos {\left (a + b \sqrt {c + d x} \right )}}{b^{2} d^{2}} + \frac {6 x \cos {\left (a + b \sqrt {c + d x} \right )}}{b^{2} d} - \frac {12 \sqrt {c + d x} \sin {\left (a + b \sqrt {c + d x} \right )}}{b^{3} d^{2}} - \frac {12 \cos {\left (a + b \sqrt {c + d x} \right )}}{b^{4} d^{2}} & \text {otherwise} \end {cases} \]
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Time = 0.25 (sec) , antiderivative size = 263, normalized size of antiderivative = 1.57 \[ \int x \cos \left (a+b \sqrt {c+d x}\right ) \, dx=\frac {2 \, {\left (a c \sin \left (\sqrt {d x + c} b + a\right ) - {\left ({\left (\sqrt {d x + c} b + a\right )} \sin \left (\sqrt {d x + c} b + a\right ) + \cos \left (\sqrt {d x + c} b + a\right )\right )} c - \frac {a^{3} \sin \left (\sqrt {d x + c} b + a\right )}{b^{2}} + \frac {3 \, {\left ({\left (\sqrt {d x + c} b + a\right )} \sin \left (\sqrt {d x + c} b + a\right ) + \cos \left (\sqrt {d x + c} b + a\right )\right )} a^{2}}{b^{2}} - \frac {3 \, {\left (2 \, {\left (\sqrt {d x + c} b + a\right )} \cos \left (\sqrt {d x + c} b + a\right ) + {\left ({\left (\sqrt {d x + c} b + a\right )}^{2} - 2\right )} \sin \left (\sqrt {d x + c} b + a\right )\right )} a}{b^{2}} + \frac {3 \, {\left ({\left (\sqrt {d x + c} b + a\right )}^{2} - 2\right )} \cos \left (\sqrt {d x + c} b + a\right ) + {\left ({\left (\sqrt {d x + c} b + a\right )}^{3} - 6 \, \sqrt {d x + c} b - 6 \, a\right )} \sin \left (\sqrt {d x + c} b + a\right )}{b^{2}}\right )}}{b^{2} d^{2}} \]
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Time = 0.28 (sec) , antiderivative size = 166, normalized size of antiderivative = 0.99 \[ \int x \cos \left (a+b \sqrt {c+d x}\right ) \, dx=-\frac {2 \, {\left (\frac {{\left (b^{2} c - 3 \, {\left (\sqrt {d x + c} b + a\right )}^{2} + 6 \, {\left (\sqrt {d x + c} b + a\right )} a - 3 \, a^{2} + 6\right )} \cos \left (\sqrt {d x + c} b + a\right )}{b^{2}} + \frac {{\left ({\left (\sqrt {d x + c} b + a\right )} b^{2} c - a b^{2} c - {\left (\sqrt {d x + c} b + a\right )}^{3} + 3 \, {\left (\sqrt {d x + c} b + a\right )}^{2} a - 3 \, {\left (\sqrt {d x + c} b + a\right )} a^{2} + a^{3} + 6 \, \sqrt {d x + c} b\right )} \sin \left (\sqrt {d x + c} b + a\right )}{b^{2}}\right )}}{b^{2} d^{2}} \]
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Timed out. \[ \int x \cos \left (a+b \sqrt {c+d x}\right ) \, dx=\int x\,\cos \left (a+b\,\sqrt {c+d\,x}\right ) \,d x \]
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