Integrand size = 17, antiderivative size = 241 \[ \int \frac {x^2 \cosh (c+d x)}{(a+b x)^3} \, dx=-\frac {a^2 \cosh (c+d x)}{2 b^3 (a+b x)^2}+\frac {2 a \cosh (c+d x)}{b^3 (a+b x)}+\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{b^3}+\frac {a^2 d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{2 b^5}-\frac {2 a d \text {Chi}\left (\frac {a d}{b}+d x\right ) \sinh \left (c-\frac {a d}{b}\right )}{b^4}-\frac {a^2 d \sinh (c+d x)}{2 b^4 (a+b x)}-\frac {2 a d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{b^4}+\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{b^3}+\frac {a^2 d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{2 b^5} \]
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Time = 0.39 (sec) , antiderivative size = 241, normalized size of antiderivative = 1.00, number of steps used = 14, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.294, Rules used = {6874, 3378, 3384, 3379, 3382} \[ \int \frac {x^2 \cosh (c+d x)}{(a+b x)^3} \, dx=\frac {a^2 d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (x d+\frac {a d}{b}\right )}{2 b^5}+\frac {a^2 d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (x d+\frac {a d}{b}\right )}{2 b^5}-\frac {a^2 d \sinh (c+d x)}{2 b^4 (a+b x)}-\frac {a^2 \cosh (c+d x)}{2 b^3 (a+b x)^2}-\frac {2 a d \sinh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (x d+\frac {a d}{b}\right )}{b^4}-\frac {2 a d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (x d+\frac {a d}{b}\right )}{b^4}+\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (x d+\frac {a d}{b}\right )}{b^3}+\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (x d+\frac {a d}{b}\right )}{b^3}+\frac {2 a \cosh (c+d x)}{b^3 (a+b x)} \]
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Rule 3378
Rule 3379
Rule 3382
Rule 3384
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {a^2 \cosh (c+d x)}{b^2 (a+b x)^3}-\frac {2 a \cosh (c+d x)}{b^2 (a+b x)^2}+\frac {\cosh (c+d x)}{b^2 (a+b x)}\right ) \, dx \\ & = \frac {\int \frac {\cosh (c+d x)}{a+b x} \, dx}{b^2}-\frac {(2 a) \int \frac {\cosh (c+d x)}{(a+b x)^2} \, dx}{b^2}+\frac {a^2 \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx}{b^2} \\ & = -\frac {a^2 \cosh (c+d x)}{2 b^3 (a+b x)^2}+\frac {2 a \cosh (c+d x)}{b^3 (a+b x)}-\frac {(2 a d) \int \frac {\sinh (c+d x)}{a+b x} \, dx}{b^3}+\frac {\left (a^2 d\right ) \int \frac {\sinh (c+d x)}{(a+b x)^2} \, dx}{2 b^3}+\frac {\cosh \left (c-\frac {a d}{b}\right ) \int \frac {\cosh \left (\frac {a d}{b}+d x\right )}{a+b x} \, dx}{b^2}+\frac {\sinh \left (c-\frac {a d}{b}\right ) \int \frac {\sinh \left (\frac {a d}{b}+d x\right )}{a+b x} \, dx}{b^2} \\ & = -\frac {a^2 \cosh (c+d x)}{2 b^3 (a+b x)^2}+\frac {2 a \cosh (c+d x)}{b^3 (a+b x)}+\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{b^3}-\frac {a^2 d \sinh (c+d x)}{2 b^4 (a+b x)}+\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{b^3}+\frac {\left (a^2 d^2\right ) \int \frac {\cosh (c+d x)}{a+b x} \, dx}{2 b^4}-\frac {\left (2 a d \cosh \left (c-\frac {a d}{b}\right )\right ) \int \frac {\sinh \left (\frac {a d}{b}+d x\right )}{a+b x} \, dx}{b^3}-\frac {\left (2 a d \sinh \left (c-\frac {a d}{b}\right )\right ) \int \frac {\cosh \left (\frac {a d}{b}+d x\right )}{a+b x} \, dx}{b^3} \\ & = -\frac {a^2 \cosh (c+d x)}{2 b^3 (a+b x)^2}+\frac {2 a \cosh (c+d x)}{b^3 (a+b x)}+\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{b^3}-\frac {2 a d \text {Chi}\left (\frac {a d}{b}+d x\right ) \sinh \left (c-\frac {a d}{b}\right )}{b^4}-\frac {a^2 d \sinh (c+d x)}{2 b^4 (a+b x)}-\frac {2 a d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{b^4}+\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{b^3}+\frac {\left (a^2 d^2 \cosh \left (c-\frac {a d}{b}\right )\right ) \int \frac {\cosh \left (\frac {a d}{b}+d x\right )}{a+b x} \, dx}{2 b^4}+\frac {\left (a^2 d^2 \sinh \left (c-\frac {a d}{b}\right )\right ) \int \frac {\sinh \left (\frac {a d}{b}+d x\right )}{a+b x} \, dx}{2 b^4} \\ & = -\frac {a^2 \cosh (c+d x)}{2 b^3 (a+b x)^2}+\frac {2 a \cosh (c+d x)}{b^3 (a+b x)}+\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{b^3}+\frac {a^2 d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{2 b^5}-\frac {2 a d \text {Chi}\left (\frac {a d}{b}+d x\right ) \sinh \left (c-\frac {a d}{b}\right )}{b^4}-\frac {a^2 d \sinh (c+d x)}{2 b^4 (a+b x)}-\frac {2 a d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{b^4}+\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{b^3}+\frac {a^2 d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{2 b^5} \\ \end{align*}
Time = 0.65 (sec) , antiderivative size = 153, normalized size of antiderivative = 0.63 \[ \int \frac {x^2 \cosh (c+d x)}{(a+b x)^3} \, dx=\frac {\text {Chi}\left (d \left (\frac {a}{b}+x\right )\right ) \left (\left (2 b^2+a^2 d^2\right ) \cosh \left (c-\frac {a d}{b}\right )-4 a b d \sinh \left (c-\frac {a d}{b}\right )\right )-\frac {a b (-b (3 a+4 b x) \cosh (c+d x)+a d (a+b x) \sinh (c+d x))}{(a+b x)^2}+\left (-4 a b d \cosh \left (c-\frac {a d}{b}\right )+\left (2 b^2+a^2 d^2\right ) \sinh \left (c-\frac {a d}{b}\right )\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )}{2 b^5} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(916\) vs. \(2(240)=480\).
Time = 0.28 (sec) , antiderivative size = 917, normalized size of antiderivative = 3.80
method | result | size |
risch | \(-\frac {{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) a^{2} b^{2} d^{2} x^{2}+2 \,{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) a^{3} b \,d^{2} x +4 \,{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) a \,b^{3} d \,x^{2}+8 \,{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) a^{2} b^{2} d x -3 \,{\mathrm e}^{d x +c} a^{2} b^{2}-3 \,{\mathrm e}^{-d x -c} a^{2} b^{2}-{\mathrm e}^{-d x -c} a^{2} b^{2} d x +4 \,{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) a^{3} b d +4 \,{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) a \,b^{3} x -4 \,{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) a^{3} b d +4 \,{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) a \,b^{3} x +{\mathrm e}^{d x +c} a^{2} b^{2} d x +{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) a^{4} d^{2}+2 \,{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) b^{4} x^{2}-{\mathrm e}^{-d x -c} a^{3} b d -4 \,{\mathrm e}^{-d x -c} a \,b^{3} x +2 \,{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) a^{2} b^{2}+{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) a^{4} d^{2}+2 \,{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) b^{4} x^{2}+2 \,{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) a^{2} b^{2}+{\mathrm e}^{d x +c} a^{3} b d -4 \,{\mathrm e}^{d x +c} a \,b^{3} x +{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) a^{2} b^{2} d^{2} x^{2}+2 \,{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) a^{3} b \,d^{2} x -4 \,{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) a \,b^{3} d \,x^{2}-8 \,{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right ) a^{2} b^{2} d x}{4 b^{5} \left (b x +a \right )^{2}}\) | \(917\) |
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Time = 0.28 (sec) , antiderivative size = 475, normalized size of antiderivative = 1.97 \[ \int \frac {x^2 \cosh (c+d x)}{(a+b x)^3} \, dx=\frac {2 \, {\left (4 \, a b^{3} x + 3 \, a^{2} b^{2}\right )} \cosh \left (d x + c\right ) + {\left ({\left (a^{4} d^{2} - 4 \, a^{3} b d + 2 \, a^{2} b^{2} + {\left (a^{2} b^{2} d^{2} - 4 \, a b^{3} d + 2 \, b^{4}\right )} x^{2} + 2 \, {\left (a^{3} b d^{2} - 4 \, a^{2} b^{2} d + 2 \, a b^{3}\right )} x\right )} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) + {\left (a^{4} d^{2} + 4 \, a^{3} b d + 2 \, a^{2} b^{2} + {\left (a^{2} b^{2} d^{2} + 4 \, a b^{3} d + 2 \, b^{4}\right )} x^{2} + 2 \, {\left (a^{3} b d^{2} + 4 \, a^{2} b^{2} d + 2 \, a b^{3}\right )} x\right )} {\rm Ei}\left (-\frac {b d x + a d}{b}\right )\right )} \cosh \left (-\frac {b c - a d}{b}\right ) - 2 \, {\left (a^{2} b^{2} d x + a^{3} b d\right )} \sinh \left (d x + c\right ) - {\left ({\left (a^{4} d^{2} - 4 \, a^{3} b d + 2 \, a^{2} b^{2} + {\left (a^{2} b^{2} d^{2} - 4 \, a b^{3} d + 2 \, b^{4}\right )} x^{2} + 2 \, {\left (a^{3} b d^{2} - 4 \, a^{2} b^{2} d + 2 \, a b^{3}\right )} x\right )} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) - {\left (a^{4} d^{2} + 4 \, a^{3} b d + 2 \, a^{2} b^{2} + {\left (a^{2} b^{2} d^{2} + 4 \, a b^{3} d + 2 \, b^{4}\right )} x^{2} + 2 \, {\left (a^{3} b d^{2} + 4 \, a^{2} b^{2} d + 2 \, a b^{3}\right )} x\right )} {\rm Ei}\left (-\frac {b d x + a d}{b}\right )\right )} \sinh \left (-\frac {b c - a d}{b}\right )}{4 \, {\left (b^{7} x^{2} + 2 \, a b^{6} x + a^{2} b^{5}\right )}} \]
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\[ \int \frac {x^2 \cosh (c+d x)}{(a+b x)^3} \, dx=\int \frac {x^{2} \cosh {\left (c + d x \right )}}{\left (a + b x\right )^{3}}\, dx \]
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\[ \int \frac {x^2 \cosh (c+d x)}{(a+b x)^3} \, dx=\int { \frac {x^{2} \cosh \left (d x + c\right )}{{\left (b x + a\right )}^{3}} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 741 vs. \(2 (240) = 480\).
Time = 0.32 (sec) , antiderivative size = 741, normalized size of antiderivative = 3.07 \[ \int \frac {x^2 \cosh (c+d x)}{(a+b x)^3} \, dx=\frac {a^{2} b^{2} d^{2} x^{2} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + a^{2} b^{2} d^{2} x^{2} {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + 2 \, a^{3} b d^{2} x {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} - 4 \, a b^{3} d x^{2} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + 2 \, a^{3} b d^{2} x {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + 4 \, a b^{3} d x^{2} {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + a^{4} d^{2} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} - 8 \, a^{2} b^{2} d x {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + 2 \, b^{4} x^{2} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + a^{4} d^{2} {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + 8 \, a^{2} b^{2} d x {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + 2 \, b^{4} x^{2} {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} - a^{2} b^{2} d x e^{\left (d x + c\right )} + a^{2} b^{2} d x e^{\left (-d x - c\right )} - 4 \, a^{3} b d {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + 4 \, a b^{3} x {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + 4 \, a^{3} b d {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + 4 \, a b^{3} x {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} - a^{3} b d e^{\left (d x + c\right )} + 4 \, a b^{3} x e^{\left (d x + c\right )} + a^{3} b d e^{\left (-d x - c\right )} + 4 \, a b^{3} x e^{\left (-d x - c\right )} + 2 \, a^{2} b^{2} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + 2 \, a^{2} b^{2} {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + 3 \, a^{2} b^{2} e^{\left (d x + c\right )} + 3 \, a^{2} b^{2} e^{\left (-d x - c\right )}}{4 \, {\left (b^{7} x^{2} + 2 \, a b^{6} x + a^{2} b^{5}\right )}} \]
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Timed out. \[ \int \frac {x^2 \cosh (c+d x)}{(a+b x)^3} \, dx=\int \frac {x^2\,\mathrm {cosh}\left (c+d\,x\right )}{{\left (a+b\,x\right )}^3} \,d x \]
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