Integrand size = 12, antiderivative size = 51 \[ \int \frac {a+b \csc ^{-1}(c x)}{x^3} \, dx=-\frac {b c \sqrt {1-\frac {1}{c^2 x^2}}}{4 x}+\frac {1}{4} b c^2 \csc ^{-1}(c x)-\frac {a+b \csc ^{-1}(c x)}{2 x^2} \]
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Time = 0.03 (sec) , antiderivative size = 51, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {5329, 342, 327, 222} \[ \int \frac {a+b \csc ^{-1}(c x)}{x^3} \, dx=-\frac {a+b \csc ^{-1}(c x)}{2 x^2}-\frac {b c \sqrt {1-\frac {1}{c^2 x^2}}}{4 x}+\frac {1}{4} b c^2 \csc ^{-1}(c x) \]
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Rule 222
Rule 327
Rule 342
Rule 5329
Rubi steps \begin{align*} \text {integral}& = -\frac {a+b \csc ^{-1}(c x)}{2 x^2}-\frac {b \int \frac {1}{\sqrt {1-\frac {1}{c^2 x^2}} x^4} \, dx}{2 c} \\ & = -\frac {a+b \csc ^{-1}(c x)}{2 x^2}+\frac {b \text {Subst}\left (\int \frac {x^2}{\sqrt {1-\frac {x^2}{c^2}}} \, dx,x,\frac {1}{x}\right )}{2 c} \\ & = -\frac {b c \sqrt {1-\frac {1}{c^2 x^2}}}{4 x}-\frac {a+b \csc ^{-1}(c x)}{2 x^2}+\frac {1}{4} (b c) \text {Subst}\left (\int \frac {1}{\sqrt {1-\frac {x^2}{c^2}}} \, dx,x,\frac {1}{x}\right ) \\ & = -\frac {b c \sqrt {1-\frac {1}{c^2 x^2}}}{4 x}+\frac {1}{4} b c^2 \csc ^{-1}(c x)-\frac {a+b \csc ^{-1}(c x)}{2 x^2} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 66, normalized size of antiderivative = 1.29 \[ \int \frac {a+b \csc ^{-1}(c x)}{x^3} \, dx=-\frac {a}{2 x^2}-\frac {b c \sqrt {\frac {-1+c^2 x^2}{c^2 x^2}}}{4 x}-\frac {b \csc ^{-1}(c x)}{2 x^2}+\frac {1}{4} b c^2 \arcsin \left (\frac {1}{c x}\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. \(95\) vs. \(2(46)=92\).
Time = 0.37 (sec) , antiderivative size = 96, normalized size of antiderivative = 1.88
method | result | size |
parts | \(-\frac {a}{2 x^{2}}+b \,c^{2} \left (-\frac {\operatorname {arccsc}\left (c x \right )}{2 c^{2} x^{2}}+\frac {\sqrt {c^{2} x^{2}-1}\, \left (\arctan \left (\frac {1}{\sqrt {c^{2} x^{2}-1}}\right ) c^{2} x^{2}-\sqrt {c^{2} x^{2}-1}\right )}{4 \sqrt {\frac {c^{2} x^{2}-1}{c^{2} x^{2}}}\, x^{3} c^{3}}\right )\) | \(96\) |
derivativedivides | \(c^{2} \left (-\frac {a}{2 c^{2} x^{2}}+b \left (-\frac {\operatorname {arccsc}\left (c x \right )}{2 c^{2} x^{2}}-\frac {\sqrt {c^{2} x^{2}-1}\, \left (-\arctan \left (\frac {1}{\sqrt {c^{2} x^{2}-1}}\right ) c^{2} x^{2}+\sqrt {c^{2} x^{2}-1}\right )}{4 \sqrt {\frac {c^{2} x^{2}-1}{c^{2} x^{2}}}\, c^{3} x^{3}}\right )\right )\) | \(99\) |
default | \(c^{2} \left (-\frac {a}{2 c^{2} x^{2}}+b \left (-\frac {\operatorname {arccsc}\left (c x \right )}{2 c^{2} x^{2}}-\frac {\sqrt {c^{2} x^{2}-1}\, \left (-\arctan \left (\frac {1}{\sqrt {c^{2} x^{2}-1}}\right ) c^{2} x^{2}+\sqrt {c^{2} x^{2}-1}\right )}{4 \sqrt {\frac {c^{2} x^{2}-1}{c^{2} x^{2}}}\, c^{3} x^{3}}\right )\right )\) | \(99\) |
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Time = 0.28 (sec) , antiderivative size = 40, normalized size of antiderivative = 0.78 \[ \int \frac {a+b \csc ^{-1}(c x)}{x^3} \, dx=\frac {{\left (b c^{2} x^{2} - 2 \, b\right )} \operatorname {arccsc}\left (c x\right ) - \sqrt {c^{2} x^{2} - 1} b - 2 \, a}{4 \, x^{2}} \]
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Time = 1.79 (sec) , antiderivative size = 121, normalized size of antiderivative = 2.37 \[ \int \frac {a+b \csc ^{-1}(c x)}{x^3} \, dx=- \frac {a}{2 x^{2}} - \frac {b \operatorname {acsc}{\left (c x \right )}}{2 x^{2}} - \frac {b \left (\begin {cases} \frac {i c^{3} \operatorname {acosh}{\left (\frac {1}{c x} \right )}}{2} - \frac {i c^{2}}{2 x \sqrt {-1 + \frac {1}{c^{2} x^{2}}}} + \frac {i}{2 x^{3} \sqrt {-1 + \frac {1}{c^{2} x^{2}}}} & \text {for}\: \frac {1}{\left |{c^{2} x^{2}}\right |} > 1 \\- \frac {c^{3} \operatorname {asin}{\left (\frac {1}{c x} \right )}}{2} + \frac {c^{2} \sqrt {1 - \frac {1}{c^{2} x^{2}}}}{2 x} & \text {otherwise} \end {cases}\right )}{2 c} \]
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Time = 0.27 (sec) , antiderivative size = 83, normalized size of antiderivative = 1.63 \[ \int \frac {a+b \csc ^{-1}(c x)}{x^3} \, dx=\frac {1}{4} \, b {\left (\frac {\frac {c^{4} x \sqrt {-\frac {1}{c^{2} x^{2}} + 1}}{c^{2} x^{2} {\left (\frac {1}{c^{2} x^{2}} - 1\right )} - 1} - c^{3} \arctan \left (c x \sqrt {-\frac {1}{c^{2} x^{2}} + 1}\right )}{c} - \frac {2 \, \operatorname {arccsc}\left (c x\right )}{x^{2}}\right )} - \frac {a}{2 \, x^{2}} \]
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Time = 0.29 (sec) , antiderivative size = 66, normalized size of antiderivative = 1.29 \[ \int \frac {a+b \csc ^{-1}(c x)}{x^3} \, dx=-\frac {1}{4} \, {\left (2 \, b c {\left (\frac {1}{c^{2} x^{2}} - 1\right )} \arcsin \left (\frac {1}{c x}\right ) + 2 \, a c {\left (\frac {1}{c^{2} x^{2}} - 1\right )} + b c \arcsin \left (\frac {1}{c x}\right ) + \frac {b \sqrt {-\frac {1}{c^{2} x^{2}} + 1}}{x}\right )} c \]
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Time = 0.90 (sec) , antiderivative size = 50, normalized size of antiderivative = 0.98 \[ \int \frac {a+b \csc ^{-1}(c x)}{x^3} \, dx=-\frac {a}{2\,x^2}-\frac {b\,c^2\,\mathrm {asin}\left (\frac {1}{c\,x}\right )\,\left (\frac {2}{c^2\,x^2}-1\right )}{4}-\frac {b\,c\,\sqrt {1-\frac {1}{c^2\,x^2}}}{4\,x} \]
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