Integrand size = 17, antiderivative size = 262 \[ \int \frac {\cosh (c+d x)}{x (a+b x)^3} \, dx=\frac {\cosh (c+d x)}{2 a (a+b x)^2}+\frac {\cosh (c+d x)}{a^2 (a+b x)}+\frac {\cosh (c) \text {Chi}(d x)}{a^3}-\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{a^3}-\frac {d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{2 a b^2}-\frac {d \text {Chi}\left (\frac {a d}{b}+d x\right ) \sinh \left (c-\frac {a d}{b}\right )}{a^2 b}+\frac {d \sinh (c+d x)}{2 a b (a+b x)}+\frac {\sinh (c) \text {Shi}(d x)}{a^3}-\frac {d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{a^2 b}-\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{a^3}-\frac {d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{2 a b^2} \]
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Time = 0.42 (sec) , antiderivative size = 262, normalized size of antiderivative = 1.00, number of steps used = 17, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.294, Rules used = {6874, 3384, 3379, 3382, 3378} \[ \int \frac {\cosh (c+d x)}{x (a+b x)^3} \, dx=-\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (x d+\frac {a d}{b}\right )}{a^3}-\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (x d+\frac {a d}{b}\right )}{a^3}+\frac {\cosh (c) \text {Chi}(d x)}{a^3}+\frac {\sinh (c) \text {Shi}(d x)}{a^3}-\frac {d \sinh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (x d+\frac {a d}{b}\right )}{a^2 b}-\frac {d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (x d+\frac {a d}{b}\right )}{a^2 b}+\frac {\cosh (c+d x)}{a^2 (a+b x)}-\frac {d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (x d+\frac {a d}{b}\right )}{2 a b^2}-\frac {d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (x d+\frac {a d}{b}\right )}{2 a b^2}+\frac {d \sinh (c+d x)}{2 a b (a+b x)}+\frac {\cosh (c+d x)}{2 a (a+b x)^2} \]
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Rule 3378
Rule 3379
Rule 3382
Rule 3384
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {\cosh (c+d x)}{a^3 x}-\frac {b \cosh (c+d x)}{a (a+b x)^3}-\frac {b \cosh (c+d x)}{a^2 (a+b x)^2}-\frac {b \cosh (c+d x)}{a^3 (a+b x)}\right ) \, dx \\ & = \frac {\int \frac {\cosh (c+d x)}{x} \, dx}{a^3}-\frac {b \int \frac {\cosh (c+d x)}{a+b x} \, dx}{a^3}-\frac {b \int \frac {\cosh (c+d x)}{(a+b x)^2} \, dx}{a^2}-\frac {b \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx}{a} \\ & = \frac {\cosh (c+d x)}{2 a (a+b x)^2}+\frac {\cosh (c+d x)}{a^2 (a+b x)}-\frac {d \int \frac {\sinh (c+d x)}{a+b x} \, dx}{a^2}-\frac {d \int \frac {\sinh (c+d x)}{(a+b x)^2} \, dx}{2 a}+\frac {\cosh (c) \int \frac {\cosh (d x)}{x} \, dx}{a^3}-\frac {\left (b \cosh \left (c-\frac {a d}{b}\right )\right ) \int \frac {\cosh \left (\frac {a d}{b}+d x\right )}{a+b x} \, dx}{a^3}+\frac {\sinh (c) \int \frac {\sinh (d x)}{x} \, dx}{a^3}-\frac {\left (b \sinh \left (c-\frac {a d}{b}\right )\right ) \int \frac {\sinh \left (\frac {a d}{b}+d x\right )}{a+b x} \, dx}{a^3} \\ & = \frac {\cosh (c+d x)}{2 a (a+b x)^2}+\frac {\cosh (c+d x)}{a^2 (a+b x)}+\frac {\cosh (c) \text {Chi}(d x)}{a^3}-\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{a^3}+\frac {d \sinh (c+d x)}{2 a b (a+b x)}+\frac {\sinh (c) \text {Shi}(d x)}{a^3}-\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{a^3}-\frac {d^2 \int \frac {\cosh (c+d x)}{a+b x} \, dx}{2 a b}-\frac {\left (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}{a^2}-\frac {\left (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}{a^2} \\ & = \frac {\cosh (c+d x)}{2 a (a+b x)^2}+\frac {\cosh (c+d x)}{a^2 (a+b x)}+\frac {\cosh (c) \text {Chi}(d x)}{a^3}-\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{a^3}-\frac {d \text {Chi}\left (\frac {a d}{b}+d x\right ) \sinh \left (c-\frac {a d}{b}\right )}{a^2 b}+\frac {d \sinh (c+d x)}{2 a b (a+b x)}+\frac {\sinh (c) \text {Shi}(d x)}{a^3}-\frac {d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{a^2 b}-\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{a^3}-\frac {\left (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 a b}-\frac {\left (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 a b} \\ & = \frac {\cosh (c+d x)}{2 a (a+b x)^2}+\frac {\cosh (c+d x)}{a^2 (a+b x)}+\frac {\cosh (c) \text {Chi}(d x)}{a^3}-\frac {\cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{a^3}-\frac {d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{2 a b^2}-\frac {d \text {Chi}\left (\frac {a d}{b}+d x\right ) \sinh \left (c-\frac {a d}{b}\right )}{a^2 b}+\frac {d \sinh (c+d x)}{2 a b (a+b x)}+\frac {\sinh (c) \text {Shi}(d x)}{a^3}-\frac {d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{a^2 b}-\frac {\sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{a^3}-\frac {d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{2 a b^2} \\ \end{align*}
Time = 0.87 (sec) , antiderivative size = 451, normalized size of antiderivative = 1.72 \[ \int \frac {\cosh (c+d x)}{x (a+b x)^3} \, dx=-\frac {-3 a^2 b^2 \cosh (c+d x)-2 a b^3 x \cosh (c+d x)-2 b^2 (a+b x)^2 \cosh (c) \text {Chi}(d x)+(a+b x)^2 \text {Chi}\left (d \left (\frac {a}{b}+x\right )\right ) \left (\left (2 b^2+a^2 d^2\right ) \cosh \left (c-\frac {a d}{b}\right )+2 a b d \sinh \left (c-\frac {a d}{b}\right )\right )-a^3 b d \sinh (c+d x)-a^2 b^2 d x \sinh (c+d x)-2 a^2 b^2 \sinh (c) \text {Shi}(d x)-4 a b^3 x \sinh (c) \text {Shi}(d x)-2 b^4 x^2 \sinh (c) \text {Shi}(d x)+2 a^3 b d \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )+4 a^2 b^2 d x \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )+2 a b^3 d x^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )+2 a^2 b^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )+a^4 d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )+4 a b^3 x \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )+2 a^3 b d^2 x \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )+2 b^4 x^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )+a^2 b^2 d^2 x^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )}{2 a^3 b^2 (a+b x)^2} \]
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Time = 0.32 (sec) , antiderivative size = 488, normalized size of antiderivative = 1.86
method | result | size |
risch | \(-\frac {{\mathrm e}^{-d x -c} d \left (\left (d x +c \right ) a b d +a^{2} d^{2}-b c d a -2 \left (d x +c \right ) b^{2}-3 d a b +2 c \,b^{2}\right )}{4 a^{2} b \left (\left (d x +c \right )^{2} b^{2}+2 \left (d x +c \right ) a b d -2 \left (d x +c \right ) b^{2} c +a^{2} d^{2}-2 b c d a +b^{2} c^{2}\right )}-\frac {{\mathrm e}^{-c} \operatorname {Ei}_{1}\left (d x \right )}{2 a^{3}}+\frac {{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) d^{2}}{4 b^{2} a}-\frac {{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right ) d}{2 b \,a^{2}}+\frac {{\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right )}{2 a^{3}}-\frac {{\mathrm e}^{c} \operatorname {Ei}_{1}\left (-d x \right )}{2 a^{3}}+\frac {d^{2} {\mathrm e}^{d x +c}}{4 a \,b^{2} \left (\frac {d a}{b}+d x \right )^{2}}+\frac {d^{2} {\mathrm e}^{d x +c}}{4 a \,b^{2} \left (\frac {d a}{b}+d x \right )}+\frac {d^{2} {\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right )}{4 a \,b^{2}}+\frac {d \,{\mathrm e}^{d x +c}}{2 a^{2} b \left (\frac {d a}{b}+d x \right )}+\frac {d \,{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right )}{2 a^{2} b}+\frac {{\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right )}{2 a^{3}}\) | \(488\) |
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Leaf count of result is larger than twice the leaf count of optimal. 601 vs. \(2 (258) = 516\).
Time = 0.29 (sec) , antiderivative size = 601, normalized size of antiderivative = 2.29 \[ \int \frac {\cosh (c+d x)}{x (a+b x)^3} \, dx=\frac {2 \, {\left (2 \, a b^{3} x + 3 \, a^{2} b^{2}\right )} \cosh \left (d x + c\right ) + 2 \, {\left ({\left (b^{4} x^{2} + 2 \, a b^{3} x + a^{2} b^{2}\right )} {\rm Ei}\left (d x\right ) + {\left (b^{4} x^{2} + 2 \, a b^{3} x + a^{2} b^{2}\right )} {\rm Ei}\left (-d x\right )\right )} \cosh \left (c\right ) - {\left ({\left (a^{4} d^{2} + 2 \, a^{3} b d + 2 \, a^{2} b^{2} + {\left (a^{2} b^{2} d^{2} + 2 \, a b^{3} d + 2 \, b^{4}\right )} x^{2} + 2 \, {\left (a^{3} b d^{2} + 2 \, a^{2} b^{2} d + 2 \, a b^{3}\right )} x\right )} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) + {\left (a^{4} d^{2} - 2 \, a^{3} b d + 2 \, a^{2} b^{2} + {\left (a^{2} b^{2} d^{2} - 2 \, a b^{3} d + 2 \, b^{4}\right )} x^{2} + 2 \, {\left (a^{3} b d^{2} - 2 \, a^{2} b^{2} d + 2 \, a b^{3}\right )} x\right )} {\rm Ei}\left (-\frac {b d x + a d}{b}\right )\right )} \cosh \left (-\frac {b c - a d}{b}\right ) + 2 \, {\left (a^{2} b^{2} d x + a^{3} b d\right )} \sinh \left (d x + c\right ) + 2 \, {\left ({\left (b^{4} x^{2} + 2 \, a b^{3} x + a^{2} b^{2}\right )} {\rm Ei}\left (d x\right ) - {\left (b^{4} x^{2} + 2 \, a b^{3} x + a^{2} b^{2}\right )} {\rm Ei}\left (-d x\right )\right )} \sinh \left (c\right ) + {\left ({\left (a^{4} d^{2} + 2 \, a^{3} b d + 2 \, a^{2} b^{2} + {\left (a^{2} b^{2} d^{2} + 2 \, a b^{3} d + 2 \, b^{4}\right )} x^{2} + 2 \, {\left (a^{3} b d^{2} + 2 \, a^{2} b^{2} d + 2 \, a b^{3}\right )} x\right )} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) - {\left (a^{4} d^{2} - 2 \, a^{3} b d + 2 \, a^{2} b^{2} + {\left (a^{2} b^{2} d^{2} - 2 \, a b^{3} d + 2 \, b^{4}\right )} x^{2} + 2 \, {\left (a^{3} b d^{2} - 2 \, a^{2} b^{2} d + 2 \, a b^{3}\right )} x\right )} {\rm Ei}\left (-\frac {b d x + a d}{b}\right )\right )} \sinh \left (-\frac {b c - a d}{b}\right )}{4 \, {\left (a^{3} b^{4} x^{2} + 2 \, a^{4} b^{3} x + a^{5} b^{2}\right )}} \]
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\[ \int \frac {\cosh (c+d x)}{x (a+b x)^3} \, dx=\int \frac {\cosh {\left (c + d x \right )}}{x \left (a + b x\right )^{3}}\, dx \]
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\[ \int \frac {\cosh (c+d x)}{x (a+b x)^3} \, dx=\int { \frac {\cosh \left (d x + c\right )}{{\left (b x + a\right )}^{3} x} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 837 vs. \(2 (258) = 516\).
Time = 0.28 (sec) , antiderivative size = 837, normalized size of antiderivative = 3.19 \[ \int \frac {\cosh (c+d x)}{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 )} + 2 \, 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 )} - 2 \, 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 \, b^{4} x^{2} {\rm Ei}\left (-d x\right ) e^{\left (-c\right )} + a^{4} d^{2} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + 4 \, 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 )} - 2 \, b^{4} x^{2} {\rm Ei}\left (d x\right ) e^{c} + a^{4} d^{2} {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} - 4 \, 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 b^{3} x {\rm Ei}\left (-d x\right ) e^{\left (-c\right )} + 2 \, 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 b^{3} x {\rm Ei}\left (d x\right ) e^{c} - 2 \, 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 )} - 2 \, a b^{3} x e^{\left (d x + c\right )} + a^{3} b d e^{\left (-d x - c\right )} - 2 \, a b^{3} x e^{\left (-d x - c\right )} - 2 \, a^{2} b^{2} {\rm Ei}\left (-d x\right ) e^{\left (-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 (d x\right ) e^{c} + 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 (a^{3} b^{4} x^{2} + 2 \, a^{4} b^{3} x + a^{5} b^{2}\right )}} \]
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Timed out. \[ \int \frac {\cosh (c+d x)}{x (a+b x)^3} \, dx=\int \frac {\mathrm {cosh}\left (c+d\,x\right )}{x\,{\left (a+b\,x\right )}^3} \,d x \]
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