Integrand size = 10, antiderivative size = 103 \[ \int \sinh ^{\frac {7}{2}}(a+b x) \, dx=-\frac {10 i \operatorname {EllipticF}\left (\frac {1}{2} \left (i a-\frac {\pi }{2}+i b x\right ),2\right ) \sqrt {i \sinh (a+b x)}}{21 b \sqrt {\sinh (a+b x)}}-\frac {10 \cosh (a+b x) \sqrt {\sinh (a+b x)}}{21 b}+\frac {2 \cosh (a+b x) \sinh ^{\frac {5}{2}}(a+b x)}{7 b} \]
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Time = 0.04 (sec) , antiderivative size = 103, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.300, Rules used = {2715, 2721, 2720} \[ \int \sinh ^{\frac {7}{2}}(a+b x) \, dx=\frac {2 \sinh ^{\frac {5}{2}}(a+b x) \cosh (a+b x)}{7 b}-\frac {10 \sqrt {\sinh (a+b x)} \cosh (a+b x)}{21 b}-\frac {10 i \sqrt {i \sinh (a+b x)} \operatorname {EllipticF}\left (\frac {1}{2} \left (i a+i b x-\frac {\pi }{2}\right ),2\right )}{21 b \sqrt {\sinh (a+b x)}} \]
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Rule 2715
Rule 2720
Rule 2721
Rubi steps \begin{align*} \text {integral}& = \frac {2 \cosh (a+b x) \sinh ^{\frac {5}{2}}(a+b x)}{7 b}-\frac {5}{7} \int \sinh ^{\frac {3}{2}}(a+b x) \, dx \\ & = -\frac {10 \cosh (a+b x) \sqrt {\sinh (a+b x)}}{21 b}+\frac {2 \cosh (a+b x) \sinh ^{\frac {5}{2}}(a+b x)}{7 b}+\frac {5}{21} \int \frac {1}{\sqrt {\sinh (a+b x)}} \, dx \\ & = -\frac {10 \cosh (a+b x) \sqrt {\sinh (a+b x)}}{21 b}+\frac {2 \cosh (a+b x) \sinh ^{\frac {5}{2}}(a+b x)}{7 b}+\frac {\left (5 \sqrt {i \sinh (a+b x)}\right ) \int \frac {1}{\sqrt {i \sinh (a+b x)}} \, dx}{21 \sqrt {\sinh (a+b x)}} \\ & = -\frac {10 i \operatorname {EllipticF}\left (\frac {1}{2} \left (i a-\frac {\pi }{2}+i b x\right ),2\right ) \sqrt {i \sinh (a+b x)}}{21 b \sqrt {\sinh (a+b x)}}-\frac {10 \cosh (a+b x) \sqrt {\sinh (a+b x)}}{21 b}+\frac {2 \cosh (a+b x) \sinh ^{\frac {5}{2}}(a+b x)}{7 b} \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.73 \[ \int \sinh ^{\frac {7}{2}}(a+b x) \, dx=\frac {40 i \operatorname {EllipticF}\left (\frac {1}{4} (-2 i a+\pi -2 i b x),2\right ) \sqrt {i \sinh (a+b x)}-26 \sinh (2 (a+b x))+3 \sinh (4 (a+b x))}{84 b \sqrt {\sinh (a+b x)}} \]
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Time = 0.85 (sec) , antiderivative size = 116, normalized size of antiderivative = 1.13
method | result | size |
default | \(\frac {\frac {5 i \sqrt {1-i \sinh \left (b x +a \right )}\, \sqrt {2}\, \sqrt {1+i \sinh \left (b x +a \right )}\, \sqrt {i \sinh \left (b x +a \right )}\, \operatorname {EllipticF}\left (\sqrt {1-i \sinh \left (b x +a \right )}, \frac {\sqrt {2}}{2}\right )}{21}+\frac {2 \cosh \left (b x +a \right )^{4} \sinh \left (b x +a \right )}{7}-\frac {16 \cosh \left (b x +a \right )^{2} \sinh \left (b x +a \right )}{21}}{\cosh \left (b x +a \right ) \sqrt {\sinh \left (b x +a \right )}\, b}\) | \(116\) |
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.08 (sec) , antiderivative size = 326, normalized size of antiderivative = 3.17 \[ \int \sinh ^{\frac {7}{2}}(a+b x) \, dx=\frac {40 \, {\left (\sqrt {2} \cosh \left (b x + a\right )^{3} + 3 \, \sqrt {2} \cosh \left (b x + a\right )^{2} \sinh \left (b x + a\right ) + 3 \, \sqrt {2} \cosh \left (b x + a\right ) \sinh \left (b x + a\right )^{2} + \sqrt {2} \sinh \left (b x + a\right )^{3}\right )} {\rm weierstrassPInverse}\left (4, 0, \cosh \left (b x + a\right ) + \sinh \left (b x + a\right )\right ) + {\left (3 \, \cosh \left (b x + a\right )^{6} + 18 \, \cosh \left (b x + a\right ) \sinh \left (b x + a\right )^{5} + 3 \, \sinh \left (b x + a\right )^{6} + {\left (45 \, \cosh \left (b x + a\right )^{2} - 23\right )} \sinh \left (b x + a\right )^{4} - 23 \, \cosh \left (b x + a\right )^{4} + 4 \, {\left (15 \, \cosh \left (b x + a\right )^{3} - 23 \, \cosh \left (b x + a\right )\right )} \sinh \left (b x + a\right )^{3} + {\left (45 \, \cosh \left (b x + a\right )^{4} - 138 \, \cosh \left (b x + a\right )^{2} - 23\right )} \sinh \left (b x + a\right )^{2} - 23 \, \cosh \left (b x + a\right )^{2} + 2 \, {\left (9 \, \cosh \left (b x + a\right )^{5} - 46 \, \cosh \left (b x + a\right )^{3} - 23 \, \cosh \left (b x + a\right )\right )} \sinh \left (b x + a\right ) + 3\right )} \sqrt {\sinh \left (b x + a\right )}}{84 \, {\left (b \cosh \left (b x + a\right )^{3} + 3 \, b \cosh \left (b x + a\right )^{2} \sinh \left (b x + a\right ) + 3 \, b \cosh \left (b x + a\right ) \sinh \left (b x + a\right )^{2} + b \sinh \left (b x + a\right )^{3}\right )}} \]
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Timed out. \[ \int \sinh ^{\frac {7}{2}}(a+b x) \, dx=\text {Timed out} \]
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\[ \int \sinh ^{\frac {7}{2}}(a+b x) \, dx=\int { \sinh \left (b x + a\right )^{\frac {7}{2}} \,d x } \]
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\[ \int \sinh ^{\frac {7}{2}}(a+b x) \, dx=\int { \sinh \left (b x + a\right )^{\frac {7}{2}} \,d x } \]
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Timed out. \[ \int \sinh ^{\frac {7}{2}}(a+b x) \, dx=\int {\mathrm {sinh}\left (a+b\,x\right )}^{7/2} \,d x \]
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