Integrand size = 14, antiderivative size = 117 \[ \int \frac {1}{x^4 \left (a+b \sec ^{-1}(c x)\right )} \, dx=-\frac {c^3 \operatorname {CosIntegral}\left (\frac {a}{b}+\sec ^{-1}(c x)\right ) \sin \left (\frac {a}{b}\right )}{4 b}-\frac {c^3 \operatorname {CosIntegral}\left (\frac {3 a}{b}+3 \sec ^{-1}(c x)\right ) \sin \left (\frac {3 a}{b}\right )}{4 b}+\frac {c^3 \cos \left (\frac {a}{b}\right ) \text {Si}\left (\frac {a}{b}+\sec ^{-1}(c x)\right )}{4 b}+\frac {c^3 \cos \left (\frac {3 a}{b}\right ) \text {Si}\left (\frac {3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b} \]
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Time = 0.18 (sec) , antiderivative size = 117, normalized size of antiderivative = 1.00, number of steps used = 9, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.357, Rules used = {5330, 4491, 3384, 3380, 3383} \[ \int \frac {1}{x^4 \left (a+b \sec ^{-1}(c x)\right )} \, dx=-\frac {c^3 \sin \left (\frac {a}{b}\right ) \operatorname {CosIntegral}\left (\frac {a}{b}+\sec ^{-1}(c x)\right )}{4 b}-\frac {c^3 \sin \left (\frac {3 a}{b}\right ) \operatorname {CosIntegral}\left (\frac {3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b}+\frac {c^3 \cos \left (\frac {a}{b}\right ) \text {Si}\left (\frac {a}{b}+\sec ^{-1}(c x)\right )}{4 b}+\frac {c^3 \cos \left (\frac {3 a}{b}\right ) \text {Si}\left (\frac {3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b} \]
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Rule 3380
Rule 3383
Rule 3384
Rule 4491
Rule 5330
Rubi steps \begin{align*} \text {integral}& = c^3 \text {Subst}\left (\int \frac {\cos ^2(x) \sin (x)}{a+b x} \, dx,x,\sec ^{-1}(c x)\right ) \\ & = c^3 \text {Subst}\left (\int \left (\frac {\sin (x)}{4 (a+b x)}+\frac {\sin (3 x)}{4 (a+b x)}\right ) \, dx,x,\sec ^{-1}(c x)\right ) \\ & = \frac {1}{4} c^3 \text {Subst}\left (\int \frac {\sin (x)}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )+\frac {1}{4} c^3 \text {Subst}\left (\int \frac {\sin (3 x)}{a+b x} \, dx,x,\sec ^{-1}(c x)\right ) \\ & = \frac {1}{4} \left (c^3 \cos \left (\frac {a}{b}\right )\right ) \text {Subst}\left (\int \frac {\sin \left (\frac {a}{b}+x\right )}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )+\frac {1}{4} \left (c^3 \cos \left (\frac {3 a}{b}\right )\right ) \text {Subst}\left (\int \frac {\sin \left (\frac {3 a}{b}+3 x\right )}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )-\frac {1}{4} \left (c^3 \sin \left (\frac {a}{b}\right )\right ) \text {Subst}\left (\int \frac {\cos \left (\frac {a}{b}+x\right )}{a+b x} \, dx,x,\sec ^{-1}(c x)\right )-\frac {1}{4} \left (c^3 \sin \left (\frac {3 a}{b}\right )\right ) \text {Subst}\left (\int \frac {\cos \left (\frac {3 a}{b}+3 x\right )}{a+b x} \, dx,x,\sec ^{-1}(c x)\right ) \\ & = -\frac {c^3 \operatorname {CosIntegral}\left (\frac {a}{b}+\sec ^{-1}(c x)\right ) \sin \left (\frac {a}{b}\right )}{4 b}-\frac {c^3 \operatorname {CosIntegral}\left (\frac {3 a}{b}+3 \sec ^{-1}(c x)\right ) \sin \left (\frac {3 a}{b}\right )}{4 b}+\frac {c^3 \cos \left (\frac {a}{b}\right ) \text {Si}\left (\frac {a}{b}+\sec ^{-1}(c x)\right )}{4 b}+\frac {c^3 \cos \left (\frac {3 a}{b}\right ) \text {Si}\left (\frac {3 a}{b}+3 \sec ^{-1}(c x)\right )}{4 b} \\ \end{align*}
Time = 0.15 (sec) , antiderivative size = 91, normalized size of antiderivative = 0.78 \[ \int \frac {1}{x^4 \left (a+b \sec ^{-1}(c x)\right )} \, dx=\frac {c^3 \left (-\operatorname {CosIntegral}\left (\frac {a}{b}+\sec ^{-1}(c x)\right ) \sin \left (\frac {a}{b}\right )-\operatorname {CosIntegral}\left (3 \left (\frac {a}{b}+\sec ^{-1}(c x)\right )\right ) \sin \left (\frac {3 a}{b}\right )+\cos \left (\frac {a}{b}\right ) \text {Si}\left (\frac {a}{b}+\sec ^{-1}(c x)\right )+\cos \left (\frac {3 a}{b}\right ) \text {Si}\left (3 \left (\frac {a}{b}+\sec ^{-1}(c x)\right )\right )\right )}{4 b} \]
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Time = 0.37 (sec) , antiderivative size = 102, normalized size of antiderivative = 0.87
method | result | size |
derivativedivides | \(c^{3} \left (\frac {\operatorname {Si}\left (\frac {3 a}{b}+3 \,\operatorname {arcsec}\left (c x \right )\right ) \cos \left (\frac {3 a}{b}\right )}{4 b}-\frac {\operatorname {Ci}\left (\frac {3 a}{b}+3 \,\operatorname {arcsec}\left (c x \right )\right ) \sin \left (\frac {3 a}{b}\right )}{4 b}+\frac {\operatorname {Si}\left (\frac {a}{b}+\operatorname {arcsec}\left (c x \right )\right ) \cos \left (\frac {a}{b}\right )}{4 b}-\frac {\operatorname {Ci}\left (\frac {a}{b}+\operatorname {arcsec}\left (c x \right )\right ) \sin \left (\frac {a}{b}\right )}{4 b}\right )\) | \(102\) |
default | \(c^{3} \left (\frac {\operatorname {Si}\left (\frac {3 a}{b}+3 \,\operatorname {arcsec}\left (c x \right )\right ) \cos \left (\frac {3 a}{b}\right )}{4 b}-\frac {\operatorname {Ci}\left (\frac {3 a}{b}+3 \,\operatorname {arcsec}\left (c x \right )\right ) \sin \left (\frac {3 a}{b}\right )}{4 b}+\frac {\operatorname {Si}\left (\frac {a}{b}+\operatorname {arcsec}\left (c x \right )\right ) \cos \left (\frac {a}{b}\right )}{4 b}-\frac {\operatorname {Ci}\left (\frac {a}{b}+\operatorname {arcsec}\left (c x \right )\right ) \sin \left (\frac {a}{b}\right )}{4 b}\right )\) | \(102\) |
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\[ \int \frac {1}{x^4 \left (a+b \sec ^{-1}(c x)\right )} \, dx=\int { \frac {1}{{\left (b \operatorname {arcsec}\left (c x\right ) + a\right )} x^{4}} \,d x } \]
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\[ \int \frac {1}{x^4 \left (a+b \sec ^{-1}(c x)\right )} \, dx=\int \frac {1}{x^{4} \left (a + b \operatorname {asec}{\left (c x \right )}\right )}\, dx \]
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\[ \int \frac {1}{x^4 \left (a+b \sec ^{-1}(c x)\right )} \, dx=\int { \frac {1}{{\left (b \operatorname {arcsec}\left (c x\right ) + a\right )} x^{4}} \,d x } \]
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Time = 0.29 (sec) , antiderivative size = 199, normalized size of antiderivative = 1.70 \[ \int \frac {1}{x^4 \left (a+b \sec ^{-1}(c x)\right )} \, dx=-\frac {1}{4} \, {\left (\frac {4 \, c^{2} \cos \left (\frac {a}{b}\right )^{2} \operatorname {Ci}\left (\frac {3 \, a}{b} + 3 \, \arccos \left (\frac {1}{c x}\right )\right ) \sin \left (\frac {a}{b}\right )}{b} - \frac {4 \, c^{2} \cos \left (\frac {a}{b}\right )^{3} \operatorname {Si}\left (\frac {3 \, a}{b} + 3 \, \arccos \left (\frac {1}{c x}\right )\right )}{b} - \frac {c^{2} \operatorname {Ci}\left (\frac {3 \, a}{b} + 3 \, \arccos \left (\frac {1}{c x}\right )\right ) \sin \left (\frac {a}{b}\right )}{b} + \frac {c^{2} \operatorname {Ci}\left (\frac {a}{b} + \arccos \left (\frac {1}{c x}\right )\right ) \sin \left (\frac {a}{b}\right )}{b} + \frac {3 \, c^{2} \cos \left (\frac {a}{b}\right ) \operatorname {Si}\left (\frac {3 \, a}{b} + 3 \, \arccos \left (\frac {1}{c x}\right )\right )}{b} - \frac {c^{2} \cos \left (\frac {a}{b}\right ) \operatorname {Si}\left (\frac {a}{b} + \arccos \left (\frac {1}{c x}\right )\right )}{b}\right )} c \]
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Timed out. \[ \int \frac {1}{x^4 \left (a+b \sec ^{-1}(c x)\right )} \, dx=\int \frac {1}{x^4\,\left (a+b\,\mathrm {acos}\left (\frac {1}{c\,x}\right )\right )} \,d x \]
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