Integrand size = 27, antiderivative size = 71 \[ \int \frac {a+b \text {arccosh}(c x)}{x^2 \sqrt {d-c^2 d x^2}} \, dx=-\frac {\sqrt {d-c^2 d x^2} (a+b \text {arccosh}(c x))}{d x}-\frac {b c \sqrt {-1+c x} \sqrt {1+c x} \log (x)}{\sqrt {d-c^2 d x^2}} \]
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Time = 0.07 (sec) , antiderivative size = 71, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.074, Rules used = {5917, 29} \[ \int \frac {a+b \text {arccosh}(c x)}{x^2 \sqrt {d-c^2 d x^2}} \, dx=-\frac {\sqrt {d-c^2 d x^2} (a+b \text {arccosh}(c x))}{d x}-\frac {b c \sqrt {c x-1} \sqrt {c x+1} \log (x)}{\sqrt {d-c^2 d x^2}} \]
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Rule 29
Rule 5917
Rubi steps \begin{align*} \text {integral}& = -\frac {\sqrt {d-c^2 d x^2} (a+b \text {arccosh}(c x))}{d x}-\frac {\left (b c \sqrt {-1+c x} \sqrt {1+c x}\right ) \int \frac {1}{x} \, dx}{\sqrt {d-c^2 d x^2}} \\ & = -\frac {\sqrt {d-c^2 d x^2} (a+b \text {arccosh}(c x))}{d x}-\frac {b c \sqrt {-1+c x} \sqrt {1+c x} \log (x)}{\sqrt {d-c^2 d x^2}} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 71, normalized size of antiderivative = 1.00 \[ \int \frac {a+b \text {arccosh}(c x)}{x^2 \sqrt {d-c^2 d x^2}} \, dx=\frac {\sqrt {-1+c x} \sqrt {1+c x} \left (\frac {\sqrt {-1+c x} \sqrt {1+c x} (a+b \text {arccosh}(c x))}{x}-b c \log (x)\right )}{\sqrt {d-c^2 d x^2}} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(207\) vs. \(2(63)=126\).
Time = 1.00 (sec) , antiderivative size = 208, normalized size of antiderivative = 2.93
method | result | size |
default | \(-\frac {a \sqrt {-c^{2} d \,x^{2}+d}}{d x}+b \left (-\frac {2 \sqrt {-d \left (c^{2} x^{2}-1\right )}\, \sqrt {c x -1}\, \sqrt {c x +1}\, \operatorname {arccosh}\left (c x \right ) c}{d \left (c^{2} x^{2}-1\right )}-\frac {\sqrt {-d \left (c^{2} x^{2}-1\right )}\, \left (-\sqrt {c x -1}\, \sqrt {c x +1}\, c x +c^{2} x^{2}-1\right ) \operatorname {arccosh}\left (c x \right )}{x \left (c^{2} x^{2}-1\right ) d}+\frac {\sqrt {-d \left (c^{2} x^{2}-1\right )}\, \sqrt {c x -1}\, \sqrt {c x +1}\, \ln \left (1+\left (c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )^{2}\right ) c}{d \left (c^{2} x^{2}-1\right )}\right )\) | \(208\) |
parts | \(-\frac {a \sqrt {-c^{2} d \,x^{2}+d}}{d x}+b \left (-\frac {2 \sqrt {-d \left (c^{2} x^{2}-1\right )}\, \sqrt {c x -1}\, \sqrt {c x +1}\, \operatorname {arccosh}\left (c x \right ) c}{d \left (c^{2} x^{2}-1\right )}-\frac {\sqrt {-d \left (c^{2} x^{2}-1\right )}\, \left (-\sqrt {c x -1}\, \sqrt {c x +1}\, c x +c^{2} x^{2}-1\right ) \operatorname {arccosh}\left (c x \right )}{x \left (c^{2} x^{2}-1\right ) d}+\frac {\sqrt {-d \left (c^{2} x^{2}-1\right )}\, \sqrt {c x -1}\, \sqrt {c x +1}\, \ln \left (1+\left (c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )^{2}\right ) c}{d \left (c^{2} x^{2}-1\right )}\right )\) | \(208\) |
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none
Time = 0.30 (sec) , antiderivative size = 265, normalized size of antiderivative = 3.73 \[ \int \frac {a+b \text {arccosh}(c x)}{x^2 \sqrt {d-c^2 d x^2}} \, dx=\left [-\frac {b c \sqrt {-d} x \log \left (\frac {c^{2} d x^{6} + c^{2} d x^{2} - d x^{4} + \sqrt {-c^{2} d x^{2} + d} \sqrt {c^{2} x^{2} - 1} {\left (x^{4} - 1\right )} \sqrt {-d} - d}{c^{2} x^{4} - x^{2}}\right ) + 2 \, \sqrt {-c^{2} d x^{2} + d} b \log \left (c x + \sqrt {c^{2} x^{2} - 1}\right ) + 2 \, \sqrt {-c^{2} d x^{2} + d} a}{2 \, d x}, \frac {b c \sqrt {d} x \arctan \left (\frac {\sqrt {-c^{2} d x^{2} + d} \sqrt {c^{2} x^{2} - 1} {\left (x^{2} + 1\right )} \sqrt {d}}{c^{2} d x^{4} - {\left (c^{2} + 1\right )} d x^{2} + d}\right ) - \sqrt {-c^{2} d x^{2} + d} b \log \left (c x + \sqrt {c^{2} x^{2} - 1}\right ) - \sqrt {-c^{2} d x^{2} + d} a}{d x}\right ] \]
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\[ \int \frac {a+b \text {arccosh}(c x)}{x^2 \sqrt {d-c^2 d x^2}} \, dx=\int \frac {a + b \operatorname {acosh}{\left (c x \right )}}{x^{2} \sqrt {- d \left (c x - 1\right ) \left (c x + 1\right )}}\, dx \]
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Result contains complex when optimal does not.
Time = 0.32 (sec) , antiderivative size = 116, normalized size of antiderivative = 1.63 \[ \int \frac {a+b \text {arccosh}(c x)}{x^2 \sqrt {d-c^2 d x^2}} \, dx=-\frac {{\left (c^{2} d \sqrt {-\frac {1}{c^{4} d}} \log \left (x^{2} - \frac {1}{c^{2}}\right ) + i \, \left (-1\right )^{-2 \, c^{2} d x^{2} + 2 \, d} \sqrt {d} \log \left (-2 \, c^{2} d + \frac {2 \, d}{x^{2}}\right )\right )} b c}{2 \, d} - \frac {\sqrt {-c^{2} d x^{2} + d} b \operatorname {arcosh}\left (c x\right )}{d x} - \frac {\sqrt {-c^{2} d x^{2} + d} a}{d x} \]
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\[ \int \frac {a+b \text {arccosh}(c x)}{x^2 \sqrt {d-c^2 d x^2}} \, dx=\int { \frac {b \operatorname {arcosh}\left (c x\right ) + a}{\sqrt {-c^{2} d x^{2} + d} x^{2}} \,d x } \]
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Timed out. \[ \int \frac {a+b \text {arccosh}(c x)}{x^2 \sqrt {d-c^2 d x^2}} \, dx=\int \frac {a+b\,\mathrm {acosh}\left (c\,x\right )}{x^2\,\sqrt {d-c^2\,d\,x^2}} \,d x \]
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