Integrand size = 18, antiderivative size = 246 \[ \int \frac {\sinh ^3(a+b x)}{(c+d x)^{3/2}} \, dx=-\frac {3 \sqrt {b} e^{-a+\frac {b c}{d}} \sqrt {\pi } \text {erf}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}+\frac {\sqrt {b} e^{-3 a+\frac {3 b c}{d}} \sqrt {3 \pi } \text {erf}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}-\frac {3 \sqrt {b} e^{a-\frac {b c}{d}} \sqrt {\pi } \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}+\frac {\sqrt {b} e^{3 a-\frac {3 b c}{d}} \sqrt {3 \pi } \text {erfi}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}-\frac {2 \sinh ^3(a+b x)}{d \sqrt {c+d x}} \]
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Time = 0.30 (sec) , antiderivative size = 246, normalized size of antiderivative = 1.00, number of steps used = 12, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.278, Rules used = {3394, 3388, 2211, 2235, 2236} \[ \int \frac {\sinh ^3(a+b x)}{(c+d x)^{3/2}} \, dx=-\frac {3 \sqrt {\pi } \sqrt {b} e^{\frac {b c}{d}-a} \text {erf}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}+\frac {\sqrt {3 \pi } \sqrt {b} e^{\frac {3 b c}{d}-3 a} \text {erf}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}-\frac {3 \sqrt {\pi } \sqrt {b} e^{a-\frac {b c}{d}} \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}+\frac {\sqrt {3 \pi } \sqrt {b} e^{3 a-\frac {3 b c}{d}} \text {erfi}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}-\frac {2 \sinh ^3(a+b x)}{d \sqrt {c+d x}} \]
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Rule 2211
Rule 2235
Rule 2236
Rule 3388
Rule 3394
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \sinh ^3(a+b x)}{d \sqrt {c+d x}}-\frac {(6 b) \int \left (\frac {\cosh (a+b x)}{4 \sqrt {c+d x}}-\frac {\cosh (3 a+3 b x)}{4 \sqrt {c+d x}}\right ) \, dx}{d} \\ & = -\frac {2 \sinh ^3(a+b x)}{d \sqrt {c+d x}}-\frac {(3 b) \int \frac {\cosh (a+b x)}{\sqrt {c+d x}} \, dx}{2 d}+\frac {(3 b) \int \frac {\cosh (3 a+3 b x)}{\sqrt {c+d x}} \, dx}{2 d} \\ & = -\frac {2 \sinh ^3(a+b x)}{d \sqrt {c+d x}}-\frac {(3 b) \int \frac {e^{-i (i a+i b x)}}{\sqrt {c+d x}} \, dx}{4 d}-\frac {(3 b) \int \frac {e^{i (i a+i b x)}}{\sqrt {c+d x}} \, dx}{4 d}+\frac {(3 b) \int \frac {e^{-i (3 i a+3 i b x)}}{\sqrt {c+d x}} \, dx}{4 d}+\frac {(3 b) \int \frac {e^{i (3 i a+3 i b x)}}{\sqrt {c+d x}} \, dx}{4 d} \\ & = -\frac {2 \sinh ^3(a+b x)}{d \sqrt {c+d x}}+\frac {(3 b) \text {Subst}\left (\int e^{i \left (3 i a-\frac {3 i b c}{d}\right )-\frac {3 b x^2}{d}} \, dx,x,\sqrt {c+d x}\right )}{2 d^2}-\frac {(3 b) \text {Subst}\left (\int e^{i \left (i a-\frac {i b c}{d}\right )-\frac {b x^2}{d}} \, dx,x,\sqrt {c+d x}\right )}{2 d^2}-\frac {(3 b) \text {Subst}\left (\int e^{-i \left (i a-\frac {i b c}{d}\right )+\frac {b x^2}{d}} \, dx,x,\sqrt {c+d x}\right )}{2 d^2}+\frac {(3 b) \text {Subst}\left (\int e^{-i \left (3 i a-\frac {3 i b c}{d}\right )+\frac {3 b x^2}{d}} \, dx,x,\sqrt {c+d x}\right )}{2 d^2} \\ & = -\frac {3 \sqrt {b} e^{-a+\frac {b c}{d}} \sqrt {\pi } \text {erf}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}+\frac {\sqrt {b} e^{-3 a+\frac {3 b c}{d}} \sqrt {3 \pi } \text {erf}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}-\frac {3 \sqrt {b} e^{a-\frac {b c}{d}} \sqrt {\pi } \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}+\frac {\sqrt {b} e^{3 a-\frac {3 b c}{d}} \sqrt {3 \pi } \text {erfi}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{4 d^{3/2}}-\frac {2 \sinh ^3(a+b x)}{d \sqrt {c+d x}} \\ \end{align*}
Time = 0.79 (sec) , antiderivative size = 245, normalized size of antiderivative = 1.00 \[ \int \frac {\sinh ^3(a+b x)}{(c+d x)^{3/2}} \, dx=\frac {e^{-3 \left (a+b \left (\frac {c}{d}+x\right )\right )} \left (\sqrt {3} e^{6 a+3 b x} \sqrt {-\frac {b (c+d x)}{d}} \Gamma \left (\frac {1}{2},-\frac {3 b (c+d x)}{d}\right )-3 e^{4 a+\frac {2 b c}{d}+3 b x} \sqrt {-\frac {b (c+d x)}{d}} \Gamma \left (\frac {1}{2},-\frac {b (c+d x)}{d}\right )-e^{\frac {3 b c}{d}} \left (\left (-1+e^{2 (a+b x)}\right )^3-3 e^{2 a+\frac {b c}{d}+3 b x} \sqrt {\frac {b (c+d x)}{d}} \Gamma \left (\frac {1}{2},b \left (\frac {c}{d}+x\right )\right )+\sqrt {3} e^{\frac {3 b (c+d x)}{d}} \sqrt {\frac {b (c+d x)}{d}} \Gamma \left (\frac {1}{2},\frac {3 b (c+d x)}{d}\right )\right )\right )}{4 d \sqrt {c+d x}} \]
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\[\int \frac {\sinh \left (b x +a \right )^{3}}{\left (d x +c \right )^{\frac {3}{2}}}d x\]
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Leaf count of result is larger than twice the leaf count of optimal. 1346 vs. \(2 (182) = 364\).
Time = 0.26 (sec) , antiderivative size = 1346, normalized size of antiderivative = 5.47 \[ \int \frac {\sinh ^3(a+b x)}{(c+d x)^{3/2}} \, dx=\text {Too large to display} \]
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\[ \int \frac {\sinh ^3(a+b x)}{(c+d x)^{3/2}} \, dx=\int \frac {\sinh ^{3}{\left (a + b x \right )}}{\left (c + d x\right )^{\frac {3}{2}}}\, dx \]
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Time = 0.29 (sec) , antiderivative size = 197, normalized size of antiderivative = 0.80 \[ \int \frac {\sinh ^3(a+b x)}{(c+d x)^{3/2}} \, dx=\frac {\frac {\sqrt {3} \sqrt {\frac {{\left (d x + c\right )} b}{d}} e^{\left (\frac {3 \, {\left (b c - a d\right )}}{d}\right )} \Gamma \left (-\frac {1}{2}, \frac {3 \, {\left (d x + c\right )} b}{d}\right )}{\sqrt {d x + c}} - \frac {\sqrt {3} \sqrt {-\frac {{\left (d x + c\right )} b}{d}} e^{\left (-\frac {3 \, {\left (b c - a d\right )}}{d}\right )} \Gamma \left (-\frac {1}{2}, -\frac {3 \, {\left (d x + c\right )} b}{d}\right )}{\sqrt {d x + c}} - \frac {3 \, \sqrt {\frac {{\left (d x + c\right )} b}{d}} e^{\left (-a + \frac {b c}{d}\right )} \Gamma \left (-\frac {1}{2}, \frac {{\left (d x + c\right )} b}{d}\right )}{\sqrt {d x + c}} + \frac {3 \, \sqrt {-\frac {{\left (d x + c\right )} b}{d}} e^{\left (a - \frac {b c}{d}\right )} \Gamma \left (-\frac {1}{2}, -\frac {{\left (d x + c\right )} b}{d}\right )}{\sqrt {d x + c}}}{8 \, d} \]
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\[ \int \frac {\sinh ^3(a+b x)}{(c+d x)^{3/2}} \, dx=\int { \frac {\sinh \left (b x + a\right )^{3}}{{\left (d x + c\right )}^{\frac {3}{2}}} \,d x } \]
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Timed out. \[ \int \frac {\sinh ^3(a+b x)}{(c+d x)^{3/2}} \, dx=\int \frac {{\mathrm {sinh}\left (a+b\,x\right )}^3}{{\left (c+d\,x\right )}^{3/2}} \,d x \]
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