Integrand size = 14, antiderivative size = 104 \[ \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx=-\frac {\cosh (c+d x)}{2 b (a+b x)^2}+\frac {d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{2 b^3}-\frac {d \sinh (c+d x)}{2 b^2 (a+b x)}+\frac {d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{2 b^3} \]
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Time = 0.10 (sec) , antiderivative size = 104, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.286, Rules used = {3378, 3384, 3379, 3382} \[ \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx=\frac {d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (x d+\frac {a d}{b}\right )}{2 b^3}+\frac {d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (x d+\frac {a d}{b}\right )}{2 b^3}-\frac {d \sinh (c+d x)}{2 b^2 (a+b x)}-\frac {\cosh (c+d x)}{2 b (a+b x)^2} \]
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Rule 3378
Rule 3379
Rule 3382
Rule 3384
Rubi steps \begin{align*} \text {integral}& = -\frac {\cosh (c+d x)}{2 b (a+b x)^2}+\frac {d \int \frac {\sinh (c+d x)}{(a+b x)^2} \, dx}{2 b} \\ & = -\frac {\cosh (c+d x)}{2 b (a+b x)^2}-\frac {d \sinh (c+d x)}{2 b^2 (a+b x)}+\frac {d^2 \int \frac {\cosh (c+d x)}{a+b x} \, dx}{2 b^2} \\ & = -\frac {\cosh (c+d x)}{2 b (a+b x)^2}-\frac {d \sinh (c+d x)}{2 b^2 (a+b x)}+\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 b^2}+\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 b^2} \\ & = -\frac {\cosh (c+d x)}{2 b (a+b x)^2}+\frac {d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (\frac {a d}{b}+d x\right )}{2 b^3}-\frac {d \sinh (c+d x)}{2 b^2 (a+b x)}+\frac {d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (\frac {a d}{b}+d x\right )}{2 b^3} \\ \end{align*}
Time = 0.36 (sec) , antiderivative size = 88, normalized size of antiderivative = 0.85 \[ \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx=\frac {d^2 \cosh \left (c-\frac {a d}{b}\right ) \text {Chi}\left (d \left (\frac {a}{b}+x\right )\right )-\frac {b (b \cosh (c+d x)+d (a+b x) \sinh (c+d x))}{(a+b x)^2}+d^2 \sinh \left (c-\frac {a d}{b}\right ) \text {Shi}\left (d \left (\frac {a}{b}+x\right )\right )}{2 b^3} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(275\) vs. \(2(98)=196\).
Time = 0.22 (sec) , antiderivative size = 276, normalized size of antiderivative = 2.65
method | result | size |
risch | \(\frac {d^{3} {\mathrm e}^{-d x -c} x}{4 b \left (x^{2} d^{2} b^{2}+2 a b \,d^{2} x +a^{2} d^{2}\right )}+\frac {d^{3} {\mathrm e}^{-d x -c} a}{4 b^{2} \left (x^{2} d^{2} b^{2}+2 a b \,d^{2} x +a^{2} d^{2}\right )}-\frac {d^{2} {\mathrm e}^{-d x -c}}{4 b \left (x^{2} d^{2} b^{2}+2 a b \,d^{2} x +a^{2} d^{2}\right )}-\frac {d^{2} {\mathrm e}^{\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (d x +c +\frac {d a -c b}{b}\right )}{4 b^{3}}-\frac {d^{2} {\mathrm e}^{d x +c}}{4 b^{3} \left (\frac {d a}{b}+d x \right )^{2}}-\frac {d^{2} {\mathrm e}^{d x +c}}{4 b^{3} \left (\frac {d a}{b}+d x \right )}-\frac {d^{2} {\mathrm e}^{-\frac {d a -c b}{b}} \operatorname {Ei}_{1}\left (-d x -c -\frac {d a -c b}{b}\right )}{4 b^{3}}\) | \(276\) |
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Leaf count of result is larger than twice the leaf count of optimal. 253 vs. \(2 (98) = 196\).
Time = 0.24 (sec) , antiderivative size = 253, normalized size of antiderivative = 2.43 \[ \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx=-\frac {2 \, b^{2} \cosh \left (d x + c\right ) - {\left ({\left (b^{2} d^{2} x^{2} + 2 \, a b d^{2} x + a^{2} d^{2}\right )} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) + {\left (b^{2} d^{2} x^{2} + 2 \, a b d^{2} x + a^{2} d^{2}\right )} {\rm Ei}\left (-\frac {b d x + a d}{b}\right )\right )} \cosh \left (-\frac {b c - a d}{b}\right ) + 2 \, {\left (b^{2} d x + a b d\right )} \sinh \left (d x + c\right ) + {\left ({\left (b^{2} d^{2} x^{2} + 2 \, a b d^{2} x + a^{2} d^{2}\right )} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) - {\left (b^{2} d^{2} x^{2} + 2 \, a b d^{2} x + a^{2} d^{2}\right )} {\rm Ei}\left (-\frac {b d x + a d}{b}\right )\right )} \sinh \left (-\frac {b c - a d}{b}\right )}{4 \, {\left (b^{5} x^{2} + 2 \, a b^{4} x + a^{2} b^{3}\right )}} \]
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Timed out. \[ \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx=\text {Timed out} \]
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none
Time = 0.22 (sec) , antiderivative size = 95, normalized size of antiderivative = 0.91 \[ \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx=\frac {d {\left (\frac {e^{\left (-c + \frac {a d}{b}\right )} E_{2}\left (\frac {{\left (b x + a\right )} d}{b}\right )}{{\left (b x + a\right )} b} - \frac {e^{\left (c - \frac {a d}{b}\right )} E_{2}\left (-\frac {{\left (b x + a\right )} d}{b}\right )}{{\left (b x + a\right )} b}\right )}}{4 \, b} - \frac {\cosh \left (d x + c\right )}{2 \, {\left (b x + a\right )}^{2} b} \]
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Leaf count of result is larger than twice the leaf count of optimal. 298 vs. \(2 (98) = 196\).
Time = 0.27 (sec) , antiderivative size = 298, normalized size of antiderivative = 2.87 \[ \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx=\frac {b^{2} d^{2} x^{2} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + b^{2} d^{2} x^{2} {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + 2 \, a b d^{2} x {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + 2 \, a b d^{2} x {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} + a^{2} d^{2} {\rm Ei}\left (\frac {b d x + a d}{b}\right ) e^{\left (c - \frac {a d}{b}\right )} + a^{2} d^{2} {\rm Ei}\left (-\frac {b d x + a d}{b}\right ) e^{\left (-c + \frac {a d}{b}\right )} - b^{2} d x e^{\left (d x + c\right )} + b^{2} d x e^{\left (-d x - c\right )} - a b d e^{\left (d x + c\right )} + a b d e^{\left (-d x - c\right )} - b^{2} e^{\left (d x + c\right )} - b^{2} e^{\left (-d x - c\right )}}{4 \, {\left (b^{5} x^{2} + 2 \, a b^{4} x + a^{2} b^{3}\right )}} \]
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Timed out. \[ \int \frac {\cosh (c+d x)}{(a+b x)^3} \, dx=\int \frac {\mathrm {cosh}\left (c+d\,x\right )}{{\left (a+b\,x\right )}^3} \,d x \]
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