Integrand size = 28, antiderivative size = 106 \[ \int \left (1+a^2+2 a b x+b^2 x^2\right )^{3/2} \text {arcsinh}(a+b x) \, dx=-\frac {5 (a+b x)^2}{16 b}-\frac {(a+b x)^4}{16 b}+\frac {3 (a+b x) \sqrt {1+(a+b x)^2} \text {arcsinh}(a+b x)}{8 b}+\frac {(a+b x) \left (1+(a+b x)^2\right )^{3/2} \text {arcsinh}(a+b x)}{4 b}+\frac {3 \text {arcsinh}(a+b x)^2}{16 b} \]
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Time = 0.08 (sec) , antiderivative size = 106, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {5860, 5786, 5785, 5783, 30, 14} \[ \int \left (1+a^2+2 a b x+b^2 x^2\right )^{3/2} \text {arcsinh}(a+b x) \, dx=\frac {\left ((a+b x)^2+1\right )^{3/2} (a+b x) \text {arcsinh}(a+b x)}{4 b}+\frac {3 \sqrt {(a+b x)^2+1} (a+b x) \text {arcsinh}(a+b x)}{8 b}+\frac {3 \text {arcsinh}(a+b x)^2}{16 b}-\frac {(a+b x)^4}{16 b}-\frac {5 (a+b x)^2}{16 b} \]
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Rule 14
Rule 30
Rule 5783
Rule 5785
Rule 5786
Rule 5860
Rubi steps \begin{align*} \text {integral}& = \frac {\text {Subst}\left (\int \left (1+x^2\right )^{3/2} \text {arcsinh}(x) \, dx,x,a+b x\right )}{b} \\ & = \frac {(a+b x) \left (1+(a+b x)^2\right )^{3/2} \text {arcsinh}(a+b x)}{4 b}-\frac {\text {Subst}\left (\int x \left (1+x^2\right ) \, dx,x,a+b x\right )}{4 b}+\frac {3 \text {Subst}\left (\int \sqrt {1+x^2} \text {arcsinh}(x) \, dx,x,a+b x\right )}{4 b} \\ & = \frac {3 (a+b x) \sqrt {1+(a+b x)^2} \text {arcsinh}(a+b x)}{8 b}+\frac {(a+b x) \left (1+(a+b x)^2\right )^{3/2} \text {arcsinh}(a+b x)}{4 b}-\frac {\text {Subst}\left (\int \left (x+x^3\right ) \, dx,x,a+b x\right )}{4 b}-\frac {3 \text {Subst}(\int x \, dx,x,a+b x)}{8 b}+\frac {3 \text {Subst}\left (\int \frac {\text {arcsinh}(x)}{\sqrt {1+x^2}} \, dx,x,a+b x\right )}{8 b} \\ & = -\frac {5 (a+b x)^2}{16 b}-\frac {(a+b x)^4}{16 b}+\frac {3 (a+b x) \sqrt {1+(a+b x)^2} \text {arcsinh}(a+b x)}{8 b}+\frac {(a+b x) \left (1+(a+b x)^2\right )^{3/2} \text {arcsinh}(a+b x)}{4 b}+\frac {3 \text {arcsinh}(a+b x)^2}{16 b} \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 124, normalized size of antiderivative = 1.17 \[ \int \left (1+a^2+2 a b x+b^2 x^2\right )^{3/2} \text {arcsinh}(a+b x) \, dx=\frac {-b x \left (10 a+4 a^3+5 b x+6 a^2 b x+4 a b^2 x^2+b^3 x^3\right )+2 \sqrt {1+a^2+2 a b x+b^2 x^2} \left (5 a+2 a^3+5 b x+6 a^2 b x+6 a b^2 x^2+2 b^3 x^3\right ) \text {arcsinh}(a+b x)+3 \text {arcsinh}(a+b x)^2}{16 b} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(261\) vs. \(2(92)=184\).
Time = 0.72 (sec) , antiderivative size = 262, normalized size of antiderivative = 2.47
method | result | size |
default | \(\frac {4 \,\operatorname {arcsinh}\left (b x +a \right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\, b^{3} x^{3}-b^{4} x^{4}+12 \,\operatorname {arcsinh}\left (b x +a \right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\, a \,b^{2} x^{2}-4 a \,b^{3} x^{3}+12 \,\operatorname {arcsinh}\left (b x +a \right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\, a^{2} b x -6 a^{2} b^{2} x^{2}+4 \,\operatorname {arcsinh}\left (b x +a \right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\, a^{3}-4 a^{3} b x +10 \,\operatorname {arcsinh}\left (b x +a \right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\, b x -a^{4}-5 b^{2} x^{2}+10 \,\operatorname {arcsinh}\left (b x +a \right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\, a -10 a b x +3 \operatorname {arcsinh}\left (b x +a \right )^{2}-5 a^{2}-4}{16 b}\) | \(262\) |
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none
Time = 0.27 (sec) , antiderivative size = 160, normalized size of antiderivative = 1.51 \[ \int \left (1+a^2+2 a b x+b^2 x^2\right )^{3/2} \text {arcsinh}(a+b x) \, dx=-\frac {b^{4} x^{4} + 4 \, a b^{3} x^{3} + {\left (6 \, a^{2} + 5\right )} b^{2} x^{2} + 2 \, {\left (2 \, a^{3} + 5 \, a\right )} b x - 2 \, {\left (2 \, b^{3} x^{3} + 6 \, a b^{2} x^{2} + 2 \, a^{3} + {\left (6 \, a^{2} + 5\right )} b x + 5 \, a\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} \log \left (b x + a + \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}\right ) - 3 \, \log \left (b x + a + \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}\right )^{2}}{16 \, b} \]
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Leaf count of result is larger than twice the leaf count of optimal. 298 vs. \(2 (95) = 190\).
Time = 0.49 (sec) , antiderivative size = 298, normalized size of antiderivative = 2.81 \[ \int \left (1+a^2+2 a b x+b^2 x^2\right )^{3/2} \text {arcsinh}(a+b x) \, dx=\begin {cases} - \frac {a^{3} x}{4} + \frac {a^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} \operatorname {asinh}{\left (a + b x \right )}}{4 b} - \frac {3 a^{2} b x^{2}}{8} + \frac {3 a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} \operatorname {asinh}{\left (a + b x \right )}}{4} - \frac {a b^{2} x^{3}}{4} + \frac {3 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} \operatorname {asinh}{\left (a + b x \right )}}{4} - \frac {5 a x}{8} + \frac {5 a \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} \operatorname {asinh}{\left (a + b x \right )}}{8 b} - \frac {b^{3} x^{4}}{16} + \frac {b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} \operatorname {asinh}{\left (a + b x \right )}}{4} - \frac {5 b x^{2}}{16} + \frac {5 x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} \operatorname {asinh}{\left (a + b x \right )}}{8} + \frac {3 \operatorname {asinh}^{2}{\left (a + b x \right )}}{16 b} & \text {for}\: b \neq 0 \\x \left (a^{2} + 1\right )^{\frac {3}{2}} \operatorname {asinh}{\left (a \right )} & \text {otherwise} \end {cases} \]
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Leaf count of result is larger than twice the leaf count of optimal. 394 vs. \(2 (92) = 184\).
Time = 0.28 (sec) , antiderivative size = 394, normalized size of antiderivative = 3.72 \[ \int \left (1+a^2+2 a b x+b^2 x^2\right )^{3/2} \text {arcsinh}(a+b x) \, dx=-\frac {1}{16} \, {\left (b^{2} x^{4} + 4 \, a b x^{3} + 6 \, a^{2} x^{2} + \frac {4 \, a^{3} x}{b} + 5 \, x^{2} + \frac {10 \, a x}{b} + \frac {6 \, \operatorname {arsinh}\left (b x + a\right ) \operatorname {arsinh}\left (\frac {2 \, {\left (b^{2} x + a b\right )}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}}}\right )}{b^{2}} - \frac {3 \, \operatorname {arsinh}\left (\frac {2 \, {\left (b^{2} x + a b\right )}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}}}\right )^{2}}{b^{2}}\right )} b + \frac {1}{8} \, {\left (2 \, {\left (b^{2} x^{2} + 2 \, a b x + a^{2} + 1\right )}^{\frac {3}{2}} x + \frac {2 \, {\left (b^{2} x^{2} + 2 \, a b x + a^{2} + 1\right )}^{\frac {3}{2}} a}{b} + \frac {3 \, {\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} a^{2} \operatorname {arsinh}\left (\frac {2 \, {\left (b^{2} x + a b\right )}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}}}\right )}{b^{3}} - \frac {3 \, {\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} x}{b^{2}} - \frac {3 \, {\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} {\left (a^{2} + 1\right )} \operatorname {arsinh}\left (\frac {2 \, {\left (b^{2} x + a b\right )}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}}}\right )}{b^{3}} - \frac {3 \, {\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} a}{b^{3}}\right )} \operatorname {arsinh}\left (b x + a\right ) \]
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\[ \int \left (1+a^2+2 a b x+b^2 x^2\right )^{3/2} \text {arcsinh}(a+b x) \, dx=\int { {\left (b^{2} x^{2} + 2 \, a b x + a^{2} + 1\right )}^{\frac {3}{2}} \operatorname {arsinh}\left (b x + a\right ) \,d x } \]
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Timed out. \[ \int \left (1+a^2+2 a b x+b^2 x^2\right )^{3/2} \text {arcsinh}(a+b x) \, dx=\int \mathrm {asinh}\left (a+b\,x\right )\,{\left (a^2+2\,a\,b\,x+b^2\,x^2+1\right )}^{3/2} \,d x \]
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