Integrand size = 18, antiderivative size = 23 \[ \int \frac {3+2 x}{\sqrt {5+2 x+x^2}} \, dx=2 \sqrt {5+2 x+x^2}+\text {arcsinh}\left (\frac {1+x}{2}\right ) \]
[Out]
Time = 0.01 (sec) , antiderivative size = 23, 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 = {654, 633, 221} \[ \int \frac {3+2 x}{\sqrt {5+2 x+x^2}} \, dx=\text {arcsinh}\left (\frac {x+1}{2}\right )+2 \sqrt {x^2+2 x+5} \]
[In]
[Out]
Rule 221
Rule 633
Rule 654
Rubi steps \begin{align*} \text {integral}& = 2 \sqrt {5+2 x+x^2}+\int \frac {1}{\sqrt {5+2 x+x^2}} \, dx \\ & = 2 \sqrt {5+2 x+x^2}+\frac {1}{4} \text {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^2}{16}}} \, dx,x,2+2 x\right ) \\ & = 2 \sqrt {5+2 x+x^2}+\sinh ^{-1}\left (\frac {1+x}{2}\right ) \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.52 \[ \int \frac {3+2 x}{\sqrt {5+2 x+x^2}} \, dx=2 \sqrt {5+2 x+x^2}-\log \left (-1-x+\sqrt {5+2 x+x^2}\right ) \]
[In]
[Out]
Time = 0.20 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87
method | result | size |
default | \(\operatorname {arcsinh}\left (\frac {1}{2}+\frac {x}{2}\right )+2 \sqrt {x^{2}+2 x +5}\) | \(20\) |
risch | \(\operatorname {arcsinh}\left (\frac {1}{2}+\frac {x}{2}\right )+2 \sqrt {x^{2}+2 x +5}\) | \(20\) |
trager | \(2 \sqrt {x^{2}+2 x +5}-\ln \left (\sqrt {x^{2}+2 x +5}-1-x \right )\) | \(32\) |
[In]
[Out]
none
Time = 0.35 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.35 \[ \int \frac {3+2 x}{\sqrt {5+2 x+x^2}} \, dx=2 \, \sqrt {x^{2} + 2 \, x + 5} - \log \left (-x + \sqrt {x^{2} + 2 \, x + 5} - 1\right ) \]
[In]
[Out]
Time = 0.37 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87 \[ \int \frac {3+2 x}{\sqrt {5+2 x+x^2}} \, dx=2 \sqrt {x^{2} + 2 x + 5} + \operatorname {asinh}{\left (\frac {x}{2} + \frac {1}{2} \right )} \]
[In]
[Out]
none
Time = 0.30 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.83 \[ \int \frac {3+2 x}{\sqrt {5+2 x+x^2}} \, dx=2 \, \sqrt {x^{2} + 2 \, x + 5} + \operatorname {arsinh}\left (\frac {1}{2} \, x + \frac {1}{2}\right ) \]
[In]
[Out]
none
Time = 0.26 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.35 \[ \int \frac {3+2 x}{\sqrt {5+2 x+x^2}} \, dx=2 \, \sqrt {x^{2} + 2 \, x + 5} - \log \left (-x + \sqrt {x^{2} + 2 \, x + 5} - 1\right ) \]
[In]
[Out]
Time = 10.09 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.17 \[ \int \frac {3+2 x}{\sqrt {5+2 x+x^2}} \, dx=\ln \left (x+\sqrt {x^2+2\,x+5}+1\right )+2\,\sqrt {x^2+2\,x+5} \]
[In]
[Out]