Integrand size = 8, antiderivative size = 31 \[ \int \frac {1}{\sqrt {\arccos (a x)}} \, dx=-\frac {\sqrt {2 \pi } \operatorname {FresnelS}\left (\sqrt {\frac {2}{\pi }} \sqrt {\arccos (a x)}\right )}{a} \]
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Time = 0.02 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.375, Rules used = {4720, 3386, 3432} \[ \int \frac {1}{\sqrt {\arccos (a x)}} \, dx=-\frac {\sqrt {2 \pi } \operatorname {FresnelS}\left (\sqrt {\frac {2}{\pi }} \sqrt {\arccos (a x)}\right )}{a} \]
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Rule 3386
Rule 3432
Rule 4720
Rubi steps \begin{align*} \text {integral}& = -\frac {\text {Subst}\left (\int \frac {\sin (x)}{\sqrt {x}} \, dx,x,\arccos (a x)\right )}{a} \\ & = -\frac {2 \text {Subst}\left (\int \sin \left (x^2\right ) \, dx,x,\sqrt {\arccos (a x)}\right )}{a} \\ & = -\frac {\sqrt {2 \pi } \operatorname {FresnelS}\left (\sqrt {\frac {2}{\pi }} \sqrt {\arccos (a x)}\right )}{a} \\ \end{align*}
Result contains complex when optimal does not.
Time = 0.02 (sec) , antiderivative size = 68, normalized size of antiderivative = 2.19 \[ \int \frac {1}{\sqrt {\arccos (a x)}} \, dx=-\frac {-\sqrt {-i \arccos (a x)} \Gamma \left (\frac {1}{2},-i \arccos (a x)\right )-\sqrt {i \arccos (a x)} \Gamma \left (\frac {1}{2},i \arccos (a x)\right )}{2 a \sqrt {\arccos (a x)}} \]
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Time = 0.70 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.84
method | result | size |
default | \(-\frac {\operatorname {FresnelS}\left (\frac {\sqrt {2}\, \sqrt {\arccos \left (a x \right )}}{\sqrt {\pi }}\right ) \sqrt {2}\, \sqrt {\pi }}{a}\) | \(26\) |
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Exception generated. \[ \int \frac {1}{\sqrt {\arccos (a x)}} \, dx=\text {Exception raised: TypeError} \]
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\[ \int \frac {1}{\sqrt {\arccos (a x)}} \, dx=\int \frac {1}{\sqrt {\operatorname {acos}{\left (a x \right )}}}\, dx \]
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Exception generated. \[ \int \frac {1}{\sqrt {\arccos (a x)}} \, dx=\text {Exception raised: RuntimeError} \]
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Result contains complex when optimal does not.
Time = 0.29 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.52 \[ \int \frac {1}{\sqrt {\arccos (a x)}} \, dx=-\frac {\left (i - 1\right ) \, \sqrt {2} \sqrt {\pi } \operatorname {erf}\left (\left (\frac {1}{2} i - \frac {1}{2}\right ) \, \sqrt {2} \sqrt {\arccos \left (a x\right )}\right )}{4 \, a} + \frac {\left (i + 1\right ) \, \sqrt {2} \sqrt {\pi } \operatorname {erf}\left (-\left (\frac {1}{2} i + \frac {1}{2}\right ) \, \sqrt {2} \sqrt {\arccos \left (a x\right )}\right )}{4 \, a} \]
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Timed out. \[ \int \frac {1}{\sqrt {\arccos (a x)}} \, dx=\int \frac {1}{\sqrt {\mathrm {acos}\left (a\,x\right )}} \,d x \]
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