\(\int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx\) [56]

Optimal result

Integrand size = 18, antiderivative size = 381 \[ \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx=-\frac {5 d (c+d x)^{3/2} \cosh (a+b x)}{3 b^2}-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {45 d^{5/2} e^{-a+\frac {b c}{d}} \sqrt {\pi } \text {erf}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{64 b^{7/2}}+\frac {5 d^{5/2} e^{-3 a+\frac {3 b c}{d}} \sqrt {\frac {\pi }{3}} \text {erf}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{576 b^{7/2}}-\frac {45 d^{5/2} e^{a-\frac {b c}{d}} \sqrt {\pi } \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{64 b^{7/2}}-\frac {5 d^{5/2} e^{3 a-\frac {3 b c}{d}} \sqrt {\frac {\pi }{3}} \text {erfi}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{576 b^{7/2}}+\frac {45 d^2 \sqrt {c+d x} \sinh (a+b x)}{16 b^3}+\frac {2 (c+d x)^{5/2} \sinh (a+b x)}{3 b}+\frac {(c+d x)^{5/2} \cosh ^2(a+b x) \sinh (a+b x)}{3 b}+\frac {5 d^2 \sqrt {c+d x} \sinh (3 a+3 b x)}{144 b^3} \] Output:

-5/3*d*(d*x+c)^(3/2)*cosh(b*x+a)/b^2-5/18*d*(d*x+c)^(3/2)*cosh(b*x+a)^3/b^ 
2+45/64*d^(5/2)*exp(-a+b*c/d)*Pi^(1/2)*erf(b^(1/2)*(d*x+c)^(1/2)/d^(1/2))/ 
b^(7/2)+5/1728*d^(5/2)*exp(-3*a+3*b*c/d)*3^(1/2)*Pi^(1/2)*erf(3^(1/2)*b^(1 
/2)*(d*x+c)^(1/2)/d^(1/2))/b^(7/2)-45/64*d^(5/2)*exp(a-b*c/d)*Pi^(1/2)*erf 
i(b^(1/2)*(d*x+c)^(1/2)/d^(1/2))/b^(7/2)-5/1728*d^(5/2)*exp(3*a-3*b*c/d)*3 
^(1/2)*Pi^(1/2)*erfi(3^(1/2)*b^(1/2)*(d*x+c)^(1/2)/d^(1/2))/b^(7/2)+45/16* 
d^2*(d*x+c)^(1/2)*sinh(b*x+a)/b^3+2/3*(d*x+c)^(5/2)*sinh(b*x+a)/b+1/3*(d*x 
+c)^(5/2)*cosh(b*x+a)^2*sinh(b*x+a)/b+5/144*d^2*(d*x+c)^(1/2)*sinh(3*b*x+3 
*a)/b^3
 

Mathematica [A] (verified)

Time = 0.35 (sec) , antiderivative size = 195, normalized size of antiderivative = 0.51 \[ \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx=\frac {e^{-3 \left (a+\frac {b c}{d}\right )} (c+d x)^{3/2} \left (\sqrt {3} b e^{6 a} (c+d x) \Gamma \left (\frac {7}{2},-\frac {3 b (c+d x)}{d}\right )+243 b e^{4 a+\frac {2 b c}{d}} (c+d x) \Gamma \left (\frac {7}{2},-\frac {b (c+d x)}{d}\right )-d e^{\frac {4 b c}{d}} \sqrt {-\frac {b^2 (c+d x)^2}{d^2}} \left (243 e^{2 a} \Gamma \left (\frac {7}{2},\frac {b (c+d x)}{d}\right )+\sqrt {3} e^{\frac {2 b c}{d}} \Gamma \left (\frac {7}{2},\frac {3 b (c+d x)}{d}\right )\right )\right )}{648 b^2 \left (-\frac {b (c+d x)}{d}\right )^{5/2}} \] Input:

Integrate[(c + d*x)^(5/2)*Cosh[a + b*x]^3,x]
 

Output:

((c + d*x)^(3/2)*(Sqrt[3]*b*E^(6*a)*(c + d*x)*Gamma[7/2, (-3*b*(c + d*x))/ 
d] + 243*b*E^(4*a + (2*b*c)/d)*(c + d*x)*Gamma[7/2, -((b*(c + d*x))/d)] - 
d*E^((4*b*c)/d)*Sqrt[-((b^2*(c + d*x)^2)/d^2)]*(243*E^(2*a)*Gamma[7/2, (b* 
(c + d*x))/d] + Sqrt[3]*E^((2*b*c)/d)*Gamma[7/2, (3*b*(c + d*x))/d])))/(64 
8*b^2*E^(3*(a + (b*c)/d))*(-((b*(c + d*x))/d))^(5/2))
 

Rubi [C] (verified)

Result contains complex when optimal does not.

Time = 2.36 (sec) , antiderivative size = 546, normalized size of antiderivative = 1.43, number of steps used = 20, number of rules used = 19, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 1.056, Rules used = {3042, 3792, 3042, 3777, 26, 3042, 26, 3777, 3042, 3777, 26, 3042, 26, 3789, 2611, 2633, 2634, 3793, 2009}

Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.

\(\displaystyle \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx\)

\(\Big \downarrow \) 3042

\(\displaystyle \int (c+d x)^{5/2} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx\)

\(\Big \downarrow \) 3792

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \cosh ^3(a+b x)dx}{12 b^2}+\frac {2}{3} \int (c+d x)^{5/2} \cosh (a+b x)dx-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3042

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \int (c+d x)^{5/2} \sin \left (i a+i b x+\frac {\pi }{2}\right )dx-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3777

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}-\frac {5 i d \int -i (c+d x)^{3/2} \sinh (a+b x)dx}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 26

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}-\frac {5 d \int (c+d x)^{3/2} \sinh (a+b x)dx}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3042

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}-\frac {5 d \int -i (c+d x)^{3/2} \sin (i a+i b x)dx}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 26

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \int (c+d x)^{3/2} \sin (i a+i b x)dx}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3777

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \int \sqrt {c+d x} \cosh (a+b x)dx}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3042

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )dx}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3777

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}-\frac {i d \int -\frac {i \sinh (a+b x)}{\sqrt {c+d x}}dx}{2 b}\right )}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 26

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}-\frac {d \int \frac {\sinh (a+b x)}{\sqrt {c+d x}}dx}{2 b}\right )}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3042

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}-\frac {d \int -\frac {i \sin (i a+i b x)}{\sqrt {c+d x}}dx}{2 b}\right )}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 26

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}+\frac {i d \int \frac {\sin (i a+i b x)}{\sqrt {c+d x}}dx}{2 b}\right )}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3789

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}+\frac {i d \left (\frac {1}{2} i \int \frac {e^{a+b x}}{\sqrt {c+d x}}dx-\frac {1}{2} i \int \frac {e^{-a-b x}}{\sqrt {c+d x}}dx\right )}{2 b}\right )}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 2611

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}+\frac {i d \left (\frac {i \int e^{a+\frac {b (c+d x)}{d}-\frac {b c}{d}}d\sqrt {c+d x}}{d}-\frac {i \int e^{-a-\frac {b (c+d x)}{d}+\frac {b c}{d}}d\sqrt {c+d x}}{d}\right )}{2 b}\right )}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 2633

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}+\frac {i d \left (\frac {i \sqrt {\pi } e^{a-\frac {b c}{d}} \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{2 \sqrt {b} \sqrt {d}}-\frac {i \int e^{-a-\frac {b (c+d x)}{d}+\frac {b c}{d}}d\sqrt {c+d x}}{d}\right )}{2 b}\right )}{2 b}\right )}{2 b}\right )-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 2634

\(\displaystyle \frac {5 d^2 \int \sqrt {c+d x} \sin \left (i a+i b x+\frac {\pi }{2}\right )^3dx}{12 b^2}-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}+\frac {i d \left (\frac {i \sqrt {\pi } e^{a-\frac {b c}{d}} \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{2 \sqrt {b} \sqrt {d}}-\frac {i \sqrt {\pi } e^{\frac {b c}{d}-a} \text {erf}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{2 \sqrt {b} \sqrt {d}}\right )}{2 b}\right )}{2 b}\right )}{2 b}\right )+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 3793

\(\displaystyle \frac {5 d^2 \int \left (\frac {3}{4} \sqrt {c+d x} \cosh (a+b x)+\frac {1}{4} \sqrt {c+d x} \cosh (3 a+3 b x)\right )dx}{12 b^2}-\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}+\frac {i d \left (\frac {i \sqrt {\pi } e^{a-\frac {b c}{d}} \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{2 \sqrt {b} \sqrt {d}}-\frac {i \sqrt {\pi } e^{\frac {b c}{d}-a} \text {erf}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{2 \sqrt {b} \sqrt {d}}\right )}{2 b}\right )}{2 b}\right )}{2 b}\right )+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

\(\Big \downarrow \) 2009

\(\displaystyle -\frac {5 d (c+d x)^{3/2} \cosh ^3(a+b x)}{18 b^2}+\frac {5 d^2 \left (\frac {3 \sqrt {\pi } \sqrt {d} e^{\frac {b c}{d}-a} \text {erf}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{16 b^{3/2}}+\frac {\sqrt {\frac {\pi }{3}} \sqrt {d} e^{\frac {3 b c}{d}-3 a} \text {erf}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{48 b^{3/2}}-\frac {3 \sqrt {\pi } \sqrt {d} e^{a-\frac {b c}{d}} \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{16 b^{3/2}}-\frac {\sqrt {\frac {\pi }{3}} \sqrt {d} e^{3 a-\frac {3 b c}{d}} \text {erfi}\left (\frac {\sqrt {3} \sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{48 b^{3/2}}+\frac {3 \sqrt {c+d x} \sinh (a+b x)}{4 b}+\frac {\sqrt {c+d x} \sinh (3 a+3 b x)}{12 b}\right )}{12 b^2}+\frac {2}{3} \left (\frac {(c+d x)^{5/2} \sinh (a+b x)}{b}+\frac {5 i d \left (\frac {i (c+d x)^{3/2} \cosh (a+b x)}{b}-\frac {3 i d \left (\frac {\sqrt {c+d x} \sinh (a+b x)}{b}+\frac {i d \left (\frac {i \sqrt {\pi } e^{a-\frac {b c}{d}} \text {erfi}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{2 \sqrt {b} \sqrt {d}}-\frac {i \sqrt {\pi } e^{\frac {b c}{d}-a} \text {erf}\left (\frac {\sqrt {b} \sqrt {c+d x}}{\sqrt {d}}\right )}{2 \sqrt {b} \sqrt {d}}\right )}{2 b}\right )}{2 b}\right )}{2 b}\right )+\frac {(c+d x)^{5/2} \sinh (a+b x) \cosh ^2(a+b x)}{3 b}\)

Input:

Int[(c + d*x)^(5/2)*Cosh[a + b*x]^3,x]
 

Output:

(-5*d*(c + d*x)^(3/2)*Cosh[a + b*x]^3)/(18*b^2) + ((c + d*x)^(5/2)*Cosh[a 
+ b*x]^2*Sinh[a + b*x])/(3*b) + (2*(((c + d*x)^(5/2)*Sinh[a + b*x])/b + (( 
(5*I)/2)*d*((I*(c + d*x)^(3/2)*Cosh[a + b*x])/b - (((3*I)/2)*d*(((I/2)*d*( 
((-1/2*I)*E^(-a + (b*c)/d)*Sqrt[Pi]*Erf[(Sqrt[b]*Sqrt[c + d*x])/Sqrt[d]])/ 
(Sqrt[b]*Sqrt[d]) + ((I/2)*E^(a - (b*c)/d)*Sqrt[Pi]*Erfi[(Sqrt[b]*Sqrt[c + 
 d*x])/Sqrt[d]])/(Sqrt[b]*Sqrt[d])))/b + (Sqrt[c + d*x]*Sinh[a + b*x])/b)) 
/b))/b))/3 + (5*d^2*((3*Sqrt[d]*E^(-a + (b*c)/d)*Sqrt[Pi]*Erf[(Sqrt[b]*Sqr 
t[c + d*x])/Sqrt[d]])/(16*b^(3/2)) + (Sqrt[d]*E^(-3*a + (3*b*c)/d)*Sqrt[Pi 
/3]*Erf[(Sqrt[3]*Sqrt[b]*Sqrt[c + d*x])/Sqrt[d]])/(48*b^(3/2)) - (3*Sqrt[d 
]*E^(a - (b*c)/d)*Sqrt[Pi]*Erfi[(Sqrt[b]*Sqrt[c + d*x])/Sqrt[d]])/(16*b^(3 
/2)) - (Sqrt[d]*E^(3*a - (3*b*c)/d)*Sqrt[Pi/3]*Erfi[(Sqrt[3]*Sqrt[b]*Sqrt[ 
c + d*x])/Sqrt[d]])/(48*b^(3/2)) + (3*Sqrt[c + d*x]*Sinh[a + b*x])/(4*b) + 
 (Sqrt[c + d*x]*Sinh[3*a + 3*b*x])/(12*b)))/(12*b^2)
 

Defintions of rubi rules used

rule 26

Int[(Complex[0, a_])*(Fx_), x_Symbol] :> Simp[(Complex[Identity[0], a])   I 
nt[Fx, x], x] /; FreeQ[a, x] && EqQ[a^2, 1]
 

rule 2009

Int[u_, x_Symbol] :> Simp[IntSum[u, x], x] /; SumQ[u]
 

rule 2611

Int[(F_)^((g_.)*((e_.) + (f_.)*(x_)))/Sqrt[(c_.) + (d_.)*(x_)], x_Symbol] : 
> Simp[2/d   Subst[Int[F^(g*(e - c*(f/d)) + f*g*(x^2/d)), x], x, Sqrt[c + d 
*x]], x] /; FreeQ[{F, c, d, e, f, g}, x] &&  !TrueQ[$UseGamma]
 

rule 2633

Int[(F_)^((a_.) + (b_.)*((c_.) + (d_.)*(x_))^2), x_Symbol] :> Simp[F^a*Sqrt 
[Pi]*(Erfi[(c + d*x)*Rt[b*Log[F], 2]]/(2*d*Rt[b*Log[F], 2])), x] /; FreeQ[{ 
F, a, b, c, d}, x] && PosQ[b]
 

rule 2634

Int[(F_)^((a_.) + (b_.)*((c_.) + (d_.)*(x_))^2), x_Symbol] :> Simp[F^a*Sqrt 
[Pi]*(Erf[(c + d*x)*Rt[(-b)*Log[F], 2]]/(2*d*Rt[(-b)*Log[F], 2])), x] /; Fr 
eeQ[{F, a, b, c, d}, x] && NegQ[b]
 

rule 3042

Int[u_, x_Symbol] :> Int[DeactivateTrig[u, x], x] /; FunctionOfTrigOfLinear 
Q[u, x]
 

rule 3777

Int[((c_.) + (d_.)*(x_))^(m_.)*sin[(e_.) + (f_.)*(x_)], x_Symbol] :> Simp[( 
-(c + d*x)^m)*(Cos[e + f*x]/f), x] + Simp[d*(m/f)   Int[(c + d*x)^(m - 1)*C 
os[e + f*x], x], x] /; FreeQ[{c, d, e, f}, x] && GtQ[m, 0]
 

rule 3789

Int[((c_.) + (d_.)*(x_))^(m_.)*sin[(e_.) + (f_.)*(x_)], x_Symbol] :> Simp[I 
/2   Int[(c + d*x)^m/E^(I*(e + f*x)), x], x] - Simp[I/2   Int[(c + d*x)^m*E 
^(I*(e + f*x)), x], x] /; FreeQ[{c, d, e, f, m}, x]
 

rule 3792

Int[((c_.) + (d_.)*(x_))^(m_)*((b_.)*sin[(e_.) + (f_.)*(x_)])^(n_), x_Symbo 
l] :> Simp[d*m*(c + d*x)^(m - 1)*((b*Sin[e + f*x])^n/(f^2*n^2)), x] + (-Sim 
p[b*(c + d*x)^m*Cos[e + f*x]*((b*Sin[e + f*x])^(n - 1)/(f*n)), x] + Simp[b^ 
2*((n - 1)/n)   Int[(c + d*x)^m*(b*Sin[e + f*x])^(n - 2), x], x] - Simp[d^2 
*m*((m - 1)/(f^2*n^2))   Int[(c + d*x)^(m - 2)*(b*Sin[e + f*x])^n, x], x]) 
/; FreeQ[{b, c, d, e, f}, x] && GtQ[n, 1] && GtQ[m, 1]
 

rule 3793

Int[((c_.) + (d_.)*(x_))^(m_)*sin[(e_.) + (f_.)*(x_)]^(n_), x_Symbol] :> In 
t[ExpandTrigReduce[(c + d*x)^m, Sin[e + f*x]^n, x], x] /; FreeQ[{c, d, e, f 
, m}, x] && IGtQ[n, 1] && ( !RationalQ[m] || (GeQ[m, -1] && LtQ[m, 1]))
 

Maple [F]

\[\int \left (d x +c \right )^{\frac {5}{2}} \cosh \left (b x +a \right )^{3}d x\]

Input:

int((d*x+c)^(5/2)*cosh(b*x+a)^3,x)
 

Output:

int((d*x+c)^(5/2)*cosh(b*x+a)^3,x)
 

Fricas [B] (verification not implemented)

Leaf count of result is larger than twice the leaf count of optimal. 2092 vs. \(2 (291) = 582\).

Time = 0.17 (sec) , antiderivative size = 2092, normalized size of antiderivative = 5.49 \[ \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx=\text {Too large to display} \] Input:

integrate((d*x+c)^(5/2)*cosh(b*x+a)^3,x, algorithm="fricas")
 

Output:

1/1728*(5*sqrt(3)*sqrt(pi)*(d^3*cosh(b*x + a)^3*cosh(-3*(b*c - a*d)/d) - d 
^3*cosh(b*x + a)^3*sinh(-3*(b*c - a*d)/d) + (d^3*cosh(-3*(b*c - a*d)/d) - 
d^3*sinh(-3*(b*c - a*d)/d))*sinh(b*x + a)^3 + 3*(d^3*cosh(b*x + a)*cosh(-3 
*(b*c - a*d)/d) - d^3*cosh(b*x + a)*sinh(-3*(b*c - a*d)/d))*sinh(b*x + a)^ 
2 + 3*(d^3*cosh(b*x + a)^2*cosh(-3*(b*c - a*d)/d) - d^3*cosh(b*x + a)^2*si 
nh(-3*(b*c - a*d)/d))*sinh(b*x + a))*sqrt(b/d)*erf(sqrt(3)*sqrt(d*x + c)*s 
qrt(b/d)) + 5*sqrt(3)*sqrt(pi)*(d^3*cosh(b*x + a)^3*cosh(-3*(b*c - a*d)/d) 
 + d^3*cosh(b*x + a)^3*sinh(-3*(b*c - a*d)/d) + (d^3*cosh(-3*(b*c - a*d)/d 
) + d^3*sinh(-3*(b*c - a*d)/d))*sinh(b*x + a)^3 + 3*(d^3*cosh(b*x + a)*cos 
h(-3*(b*c - a*d)/d) + d^3*cosh(b*x + a)*sinh(-3*(b*c - a*d)/d))*sinh(b*x + 
 a)^2 + 3*(d^3*cosh(b*x + a)^2*cosh(-3*(b*c - a*d)/d) + d^3*cosh(b*x + a)^ 
2*sinh(-3*(b*c - a*d)/d))*sinh(b*x + a))*sqrt(-b/d)*erf(sqrt(3)*sqrt(d*x + 
 c)*sqrt(-b/d)) + 1215*sqrt(pi)*(d^3*cosh(b*x + a)^3*cosh(-(b*c - a*d)/d) 
- d^3*cosh(b*x + a)^3*sinh(-(b*c - a*d)/d) + (d^3*cosh(-(b*c - a*d)/d) - d 
^3*sinh(-(b*c - a*d)/d))*sinh(b*x + a)^3 + 3*(d^3*cosh(b*x + a)*cosh(-(b*c 
 - a*d)/d) - d^3*cosh(b*x + a)*sinh(-(b*c - a*d)/d))*sinh(b*x + a)^2 + 3*( 
d^3*cosh(b*x + a)^2*cosh(-(b*c - a*d)/d) - d^3*cosh(b*x + a)^2*sinh(-(b*c 
- a*d)/d))*sinh(b*x + a))*sqrt(b/d)*erf(sqrt(d*x + c)*sqrt(b/d)) + 1215*sq 
rt(pi)*(d^3*cosh(b*x + a)^3*cosh(-(b*c - a*d)/d) + d^3*cosh(b*x + a)^3*sin 
h(-(b*c - a*d)/d) + (d^3*cosh(-(b*c - a*d)/d) + d^3*sinh(-(b*c - a*d)/d...
 

Sympy [F(-1)]

Timed out. \[ \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx=\text {Timed out} \] Input:

integrate((d*x+c)**(5/2)*cosh(b*x+a)**3,x)
 

Output:

Timed out
 

Maxima [A] (verification not implemented)

Time = 0.15 (sec) , antiderivative size = 513, normalized size of antiderivative = 1.35 \[ \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx=-\frac {\frac {5 \, \sqrt {3} \sqrt {\pi } d^{3} \operatorname {erf}\left (\sqrt {3} \sqrt {d x + c} \sqrt {-\frac {b}{d}}\right ) e^{\left (3 \, a - \frac {3 \, b c}{d}\right )}}{b^{3} \sqrt {-\frac {b}{d}}} - \frac {5 \, \sqrt {3} \sqrt {\pi } d^{3} \operatorname {erf}\left (\sqrt {3} \sqrt {d x + c} \sqrt {\frac {b}{d}}\right ) e^{\left (-3 \, a + \frac {3 \, b c}{d}\right )}}{b^{3} \sqrt {\frac {b}{d}}} + \frac {1215 \, \sqrt {\pi } d^{3} \operatorname {erf}\left (\sqrt {d x + c} \sqrt {-\frac {b}{d}}\right ) e^{\left (a - \frac {b c}{d}\right )}}{b^{3} \sqrt {-\frac {b}{d}}} - \frac {1215 \, \sqrt {\pi } d^{3} \operatorname {erf}\left (\sqrt {d x + c} \sqrt {\frac {b}{d}}\right ) e^{\left (-a + \frac {b c}{d}\right )}}{b^{3} \sqrt {\frac {b}{d}}} + \frac {162 \, {\left (4 \, {\left (d x + c\right )}^{\frac {5}{2}} b^{2} d e^{\left (\frac {b c}{d}\right )} + 10 \, {\left (d x + c\right )}^{\frac {3}{2}} b d^{2} e^{\left (\frac {b c}{d}\right )} + 15 \, \sqrt {d x + c} d^{3} e^{\left (\frac {b c}{d}\right )}\right )} e^{\left (-a - \frac {{\left (d x + c\right )} b}{d}\right )}}{b^{3}} + \frac {6 \, {\left (12 \, {\left (d x + c\right )}^{\frac {5}{2}} b^{2} d e^{\left (\frac {3 \, b c}{d}\right )} + 10 \, {\left (d x + c\right )}^{\frac {3}{2}} b d^{2} e^{\left (\frac {3 \, b c}{d}\right )} + 5 \, \sqrt {d x + c} d^{3} e^{\left (\frac {3 \, b c}{d}\right )}\right )} e^{\left (-3 \, a - \frac {3 \, {\left (d x + c\right )} b}{d}\right )}}{b^{3}} - \frac {6 \, {\left (12 \, {\left (d x + c\right )}^{\frac {5}{2}} b^{2} d e^{\left (3 \, a\right )} - 10 \, {\left (d x + c\right )}^{\frac {3}{2}} b d^{2} e^{\left (3 \, a\right )} + 5 \, \sqrt {d x + c} d^{3} e^{\left (3 \, a\right )}\right )} e^{\left (\frac {3 \, {\left (d x + c\right )} b}{d} - \frac {3 \, b c}{d}\right )}}{b^{3}} - \frac {162 \, {\left (4 \, {\left (d x + c\right )}^{\frac {5}{2}} b^{2} d e^{a} - 10 \, {\left (d x + c\right )}^{\frac {3}{2}} b d^{2} e^{a} + 15 \, \sqrt {d x + c} d^{3} e^{a}\right )} e^{\left (\frac {{\left (d x + c\right )} b}{d} - \frac {b c}{d}\right )}}{b^{3}}}{1728 \, d} \] Input:

integrate((d*x+c)^(5/2)*cosh(b*x+a)^3,x, algorithm="maxima")
 

Output:

-1/1728*(5*sqrt(3)*sqrt(pi)*d^3*erf(sqrt(3)*sqrt(d*x + c)*sqrt(-b/d))*e^(3 
*a - 3*b*c/d)/(b^3*sqrt(-b/d)) - 5*sqrt(3)*sqrt(pi)*d^3*erf(sqrt(3)*sqrt(d 
*x + c)*sqrt(b/d))*e^(-3*a + 3*b*c/d)/(b^3*sqrt(b/d)) + 1215*sqrt(pi)*d^3* 
erf(sqrt(d*x + c)*sqrt(-b/d))*e^(a - b*c/d)/(b^3*sqrt(-b/d)) - 1215*sqrt(p 
i)*d^3*erf(sqrt(d*x + c)*sqrt(b/d))*e^(-a + b*c/d)/(b^3*sqrt(b/d)) + 162*( 
4*(d*x + c)^(5/2)*b^2*d*e^(b*c/d) + 10*(d*x + c)^(3/2)*b*d^2*e^(b*c/d) + 1 
5*sqrt(d*x + c)*d^3*e^(b*c/d))*e^(-a - (d*x + c)*b/d)/b^3 + 6*(12*(d*x + c 
)^(5/2)*b^2*d*e^(3*b*c/d) + 10*(d*x + c)^(3/2)*b*d^2*e^(3*b*c/d) + 5*sqrt( 
d*x + c)*d^3*e^(3*b*c/d))*e^(-3*a - 3*(d*x + c)*b/d)/b^3 - 6*(12*(d*x + c) 
^(5/2)*b^2*d*e^(3*a) - 10*(d*x + c)^(3/2)*b*d^2*e^(3*a) + 5*sqrt(d*x + c)* 
d^3*e^(3*a))*e^(3*(d*x + c)*b/d - 3*b*c/d)/b^3 - 162*(4*(d*x + c)^(5/2)*b^ 
2*d*e^a - 10*(d*x + c)^(3/2)*b*d^2*e^a + 15*sqrt(d*x + c)*d^3*e^a)*e^((d*x 
 + c)*b/d - b*c/d)/b^3)/d
 

Giac [F]

\[ \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx=\int { {\left (d x + c\right )}^{\frac {5}{2}} \cosh \left (b x + a\right )^{3} \,d x } \] Input:

integrate((d*x+c)^(5/2)*cosh(b*x+a)^3,x, algorithm="giac")
 

Output:

integrate((d*x + c)^(5/2)*cosh(b*x + a)^3, x)
 

Mupad [F(-1)]

Timed out. \[ \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx=\int {\mathrm {cosh}\left (a+b\,x\right )}^3\,{\left (c+d\,x\right )}^{5/2} \,d x \] Input:

int(cosh(a + b*x)^3*(c + d*x)^(5/2),x)
 

Output:

int(cosh(a + b*x)^3*(c + d*x)^(5/2), x)
 

Reduce [F]

\[ \int (c+d x)^{5/2} \cosh ^3(a+b x) \, dx=\left (\int \sqrt {d x +c}\, \cosh \left (b x +a \right )^{3} x^{2}d x \right ) d^{2}+2 \left (\int \sqrt {d x +c}\, \cosh \left (b x +a \right )^{3} x d x \right ) c d +\left (\int \sqrt {d x +c}\, \cosh \left (b x +a \right )^{3}d x \right ) c^{2} \] Input:

int((d*x+c)^(5/2)*cosh(b*x+a)^3,x)
 

Output:

int(sqrt(c + d*x)*cosh(a + b*x)**3*x**2,x)*d**2 + 2*int(sqrt(c + d*x)*cosh 
(a + b*x)**3*x,x)*c*d + int(sqrt(c + d*x)*cosh(a + b*x)**3,x)*c**2