Integrand size = 8, antiderivative size = 80 \[ \int \frac {\arcsin (a x)}{x^6} \, dx=-\frac {a \sqrt {1-a^2 x^2}}{20 x^4}-\frac {3 a^3 \sqrt {1-a^2 x^2}}{40 x^2}-\frac {\arcsin (a x)}{5 x^5}-\frac {3}{40} a^5 \text {arctanh}\left (\sqrt {1-a^2 x^2}\right ) \]
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Time = 0.03 (sec) , antiderivative size = 80, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.625, Rules used = {4723, 272, 44, 65, 214} \[ \int \frac {\arcsin (a x)}{x^6} \, dx=-\frac {a \sqrt {1-a^2 x^2}}{20 x^4}-\frac {3}{40} a^5 \text {arctanh}\left (\sqrt {1-a^2 x^2}\right )-\frac {3 a^3 \sqrt {1-a^2 x^2}}{40 x^2}-\frac {\arcsin (a x)}{5 x^5} \]
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Rule 44
Rule 65
Rule 214
Rule 272
Rule 4723
Rubi steps \begin{align*} \text {integral}& = -\frac {\arcsin (a x)}{5 x^5}+\frac {1}{5} a \int \frac {1}{x^5 \sqrt {1-a^2 x^2}} \, dx \\ & = -\frac {\arcsin (a x)}{5 x^5}+\frac {1}{10} a \text {Subst}\left (\int \frac {1}{x^3 \sqrt {1-a^2 x}} \, dx,x,x^2\right ) \\ & = -\frac {a \sqrt {1-a^2 x^2}}{20 x^4}-\frac {\arcsin (a x)}{5 x^5}+\frac {1}{40} \left (3 a^3\right ) \text {Subst}\left (\int \frac {1}{x^2 \sqrt {1-a^2 x}} \, dx,x,x^2\right ) \\ & = -\frac {a \sqrt {1-a^2 x^2}}{20 x^4}-\frac {3 a^3 \sqrt {1-a^2 x^2}}{40 x^2}-\frac {\arcsin (a x)}{5 x^5}+\frac {1}{80} \left (3 a^5\right ) \text {Subst}\left (\int \frac {1}{x \sqrt {1-a^2 x}} \, dx,x,x^2\right ) \\ & = -\frac {a \sqrt {1-a^2 x^2}}{20 x^4}-\frac {3 a^3 \sqrt {1-a^2 x^2}}{40 x^2}-\frac {\arcsin (a x)}{5 x^5}-\frac {1}{40} \left (3 a^3\right ) \text {Subst}\left (\int \frac {1}{\frac {1}{a^2}-\frac {x^2}{a^2}} \, dx,x,\sqrt {1-a^2 x^2}\right ) \\ & = -\frac {a \sqrt {1-a^2 x^2}}{20 x^4}-\frac {3 a^3 \sqrt {1-a^2 x^2}}{40 x^2}-\frac {\arcsin (a x)}{5 x^5}-\frac {3}{40} a^5 \text {arctanh}\left (\sqrt {1-a^2 x^2}\right ) \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 3 in optimal.
Time = 0.02 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.64 \[ \int \frac {\arcsin (a x)}{x^6} \, dx=-\frac {\arcsin (a x)}{5 x^5}-\frac {1}{5} a^5 \sqrt {1-a^2 x^2} \operatorname {Hypergeometric2F1}\left (\frac {1}{2},3,\frac {3}{2},1-a^2 x^2\right ) \]
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Time = 0.01 (sec) , antiderivative size = 73, normalized size of antiderivative = 0.91
method | result | size |
derivativedivides | \(a^{5} \left (-\frac {\arcsin \left (a x \right )}{5 a^{5} x^{5}}-\frac {\sqrt {-a^{2} x^{2}+1}}{20 a^{4} x^{4}}-\frac {3 \sqrt {-a^{2} x^{2}+1}}{40 a^{2} x^{2}}-\frac {3 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {-a^{2} x^{2}+1}}\right )}{40}\right )\) | \(73\) |
default | \(a^{5} \left (-\frac {\arcsin \left (a x \right )}{5 a^{5} x^{5}}-\frac {\sqrt {-a^{2} x^{2}+1}}{20 a^{4} x^{4}}-\frac {3 \sqrt {-a^{2} x^{2}+1}}{40 a^{2} x^{2}}-\frac {3 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {-a^{2} x^{2}+1}}\right )}{40}\right )\) | \(73\) |
parts | \(-\frac {\arcsin \left (a x \right )}{5 x^{5}}+\frac {a \left (-\frac {\sqrt {-a^{2} x^{2}+1}}{4 x^{4}}+\frac {3 a^{2} \left (-\frac {\sqrt {-a^{2} x^{2}+1}}{2 x^{2}}-\frac {a^{2} \operatorname {arctanh}\left (\frac {1}{\sqrt {-a^{2} x^{2}+1}}\right )}{2}\right )}{4}\right )}{5}\) | \(73\) |
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Time = 0.26 (sec) , antiderivative size = 85, normalized size of antiderivative = 1.06 \[ \int \frac {\arcsin (a x)}{x^6} \, dx=-\frac {3 \, a^{5} x^{5} \log \left (\sqrt {-a^{2} x^{2} + 1} + 1\right ) - 3 \, a^{5} x^{5} \log \left (\sqrt {-a^{2} x^{2} + 1} - 1\right ) + 2 \, {\left (3 \, a^{3} x^{3} + 2 \, a x\right )} \sqrt {-a^{2} x^{2} + 1} + 16 \, \arcsin \left (a x\right )}{80 \, x^{5}} \]
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Time = 2.79 (sec) , antiderivative size = 182, normalized size of antiderivative = 2.28 \[ \int \frac {\arcsin (a x)}{x^6} \, dx=\frac {a \left (\begin {cases} - \frac {3 a^{4} \operatorname {acosh}{\left (\frac {1}{a x} \right )}}{8} + \frac {3 a^{3}}{8 x \sqrt {-1 + \frac {1}{a^{2} x^{2}}}} - \frac {a}{8 x^{3} \sqrt {-1 + \frac {1}{a^{2} x^{2}}}} - \frac {1}{4 a x^{5} \sqrt {-1 + \frac {1}{a^{2} x^{2}}}} & \text {for}\: \frac {1}{\left |{a^{2} x^{2}}\right |} > 1 \\\frac {3 i a^{4} \operatorname {asin}{\left (\frac {1}{a x} \right )}}{8} - \frac {3 i a^{3}}{8 x \sqrt {1 - \frac {1}{a^{2} x^{2}}}} + \frac {i a}{8 x^{3} \sqrt {1 - \frac {1}{a^{2} x^{2}}}} + \frac {i}{4 a x^{5} \sqrt {1 - \frac {1}{a^{2} x^{2}}}} & \text {otherwise} \end {cases}\right )}{5} - \frac {\operatorname {asin}{\left (a x \right )}}{5 x^{5}} \]
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Time = 0.29 (sec) , antiderivative size = 82, normalized size of antiderivative = 1.02 \[ \int \frac {\arcsin (a x)}{x^6} \, dx=-\frac {1}{40} \, {\left (3 \, a^{4} \log \left (\frac {2 \, \sqrt {-a^{2} x^{2} + 1}}{{\left | x \right |}} + \frac {2}{{\left | x \right |}}\right ) + \frac {3 \, \sqrt {-a^{2} x^{2} + 1} a^{2}}{x^{2}} + \frac {2 \, \sqrt {-a^{2} x^{2} + 1}}{x^{4}}\right )} a - \frac {\arcsin \left (a x\right )}{5 \, x^{5}} \]
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Time = 0.28 (sec) , antiderivative size = 101, normalized size of antiderivative = 1.26 \[ \int \frac {\arcsin (a x)}{x^6} \, dx=-\frac {3 \, a^{6} \log \left (\sqrt {-a^{2} x^{2} + 1} + 1\right ) - 3 \, a^{6} \log \left (-\sqrt {-a^{2} x^{2} + 1} + 1\right ) - \frac {2 \, {\left (3 \, {\left (-a^{2} x^{2} + 1\right )}^{\frac {3}{2}} a^{6} - 5 \, \sqrt {-a^{2} x^{2} + 1} a^{6}\right )}}{a^{4} x^{4}}}{80 \, a} - \frac {\arcsin \left (a x\right )}{5 \, x^{5}} \]
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Timed out. \[ \int \frac {\arcsin (a x)}{x^6} \, dx=\int \frac {\mathrm {asin}\left (a\,x\right )}{x^6} \,d x \]
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