Integrand size = 23, antiderivative size = 189 \[ \int (c e+d e x)^{7/2} (a+b \text {arccosh}(c+d x)) \, dx=-\frac {28 b e^2 \sqrt {-1+c+d x} (e (c+d x))^{3/2} \sqrt {1+c+d x}}{405 d}-\frac {4 b \sqrt {-1+c+d x} (e (c+d x))^{7/2} \sqrt {1+c+d x}}{81 d}+\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 d e}-\frac {28 b e^3 \sqrt {1-c-d x} \sqrt {e (c+d x)} E\left (\left .\arcsin \left (\frac {\sqrt {1+c+d x}}{\sqrt {2}}\right )\right |2\right )}{135 d \sqrt {-c-d x} \sqrt {-1+c+d x}} \]
2/9*(e*(d*x+c))^(9/2)*(a+b*arccosh(d*x+c))/d/e-28/135*b*e^3*EllipticE(1/2* (d*x+c+1)^(1/2)*2^(1/2),2^(1/2))*(-d*x-c+1)^(1/2)*(e*(d*x+c))^(1/2)/d/(-d* x-c)^(1/2)/(d*x+c-1)^(1/2)-28/405*b*e^2*(e*(d*x+c))^(3/2)*(d*x+c-1)^(1/2)* (d*x+c+1)^(1/2)/d-4/81*b*(e*(d*x+c))^(7/2)*(d*x+c-1)^(1/2)*(d*x+c+1)^(1/2) /d
Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.
Time = 0.23 (sec) , antiderivative size = 150, normalized size of antiderivative = 0.79 \[ \int (c e+d e x)^{7/2} (a+b \text {arccosh}(c+d x)) \, dx=\frac {2 (e (c+d x))^{7/2} \left ((c+d x)^{9/2} (a+b \text {arccosh}(c+d x))+\frac {2 b (c+d x)^{3/2} \left (7 \left (1-(c+d x)^2\right )+5 (c+d x)^2 \left (1-(c+d x)^2\right )-7 \sqrt {1-(c+d x)^2} \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {3}{4},\frac {7}{4},(c+d x)^2\right )\right )}{45 \sqrt {-1+c+d x} \sqrt {1+c+d x}}\right )}{9 d (c+d x)^{7/2}} \]
(2*(e*(c + d*x))^(7/2)*((c + d*x)^(9/2)*(a + b*ArcCosh[c + d*x]) + (2*b*(c + d*x)^(3/2)*(7*(1 - (c + d*x)^2) + 5*(c + d*x)^2*(1 - (c + d*x)^2) - 7*S qrt[1 - (c + d*x)^2]*Hypergeometric2F1[1/2, 3/4, 7/4, (c + d*x)^2]))/(45*S qrt[-1 + c + d*x]*Sqrt[1 + c + d*x])))/(9*d*(c + d*x)^(7/2))
Time = 0.36 (sec) , antiderivative size = 194, normalized size of antiderivative = 1.03, number of steps used = 10, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.391, Rules used = {6411, 6298, 113, 27, 113, 27, 124, 27, 123}
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.
| \(\displaystyle \int (c e+d e x)^{7/2} (a+b \text {arccosh}(c+d x)) \, dx\) |
| \(\Big \downarrow \) 6411 |
| \(\displaystyle \frac {\int (e (c+d x))^{7/2} (a+b \text {arccosh}(c+d x))d(c+d x)}{d}\) |
| \(\Big \downarrow \) 6298 |
| \(\displaystyle \frac {\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 e}-\frac {2 b \int \frac {(e (c+d x))^{9/2}}{\sqrt {c+d x-1} \sqrt {c+d x+1}}d(c+d x)}{9 e}}{d}\) |
| \(\Big \downarrow \) 113 |
| \(\displaystyle \frac {\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 e}-\frac {2 b \left (\frac {2}{9} \int \frac {7 e^2 (e (c+d x))^{5/2}}{2 \sqrt {c+d x-1} \sqrt {c+d x+1}}d(c+d x)+\frac {2}{9} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{7/2}\right )}{9 e}}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 e}-\frac {2 b \left (\frac {7}{9} e^2 \int \frac {(e (c+d x))^{5/2}}{\sqrt {c+d x-1} \sqrt {c+d x+1}}d(c+d x)+\frac {2}{9} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{7/2}\right )}{9 e}}{d}\) |
| \(\Big \downarrow \) 113 |
| \(\displaystyle \frac {\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 e}-\frac {2 b \left (\frac {7}{9} e^2 \left (\frac {2}{5} \int \frac {3 e^2 \sqrt {e (c+d x)}}{2 \sqrt {c+d x-1} \sqrt {c+d x+1}}d(c+d x)+\frac {2}{5} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{3/2}\right )+\frac {2}{9} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{7/2}\right )}{9 e}}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 e}-\frac {2 b \left (\frac {7}{9} e^2 \left (\frac {3}{5} e^2 \int \frac {\sqrt {e (c+d x)}}{\sqrt {c+d x-1} \sqrt {c+d x+1}}d(c+d x)+\frac {2}{5} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{3/2}\right )+\frac {2}{9} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{7/2}\right )}{9 e}}{d}\) |
| \(\Big \downarrow \) 124 |
| \(\displaystyle \frac {\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 e}-\frac {2 b \left (\frac {7}{9} e^2 \left (\frac {3 e^2 \sqrt {-c-d x+1} \sqrt {e (c+d x)} \int \frac {\sqrt {2} \sqrt {-c-d x}}{\sqrt {-c-d x+1} \sqrt {c+d x+1}}d(c+d x)}{5 \sqrt {2} \sqrt {-c-d x} \sqrt {c+d x-1}}+\frac {2}{5} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{3/2}\right )+\frac {2}{9} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{7/2}\right )}{9 e}}{d}\) |
| \(\Big \downarrow \) 27 |
| \(\displaystyle \frac {\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 e}-\frac {2 b \left (\frac {7}{9} e^2 \left (\frac {3 e^2 \sqrt {-c-d x+1} \sqrt {e (c+d x)} \int \frac {\sqrt {-c-d x}}{\sqrt {-c-d x+1} \sqrt {c+d x+1}}d(c+d x)}{5 \sqrt {-c-d x} \sqrt {c+d x-1}}+\frac {2}{5} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{3/2}\right )+\frac {2}{9} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{7/2}\right )}{9 e}}{d}\) |
| \(\Big \downarrow \) 123 |
| \(\displaystyle \frac {\frac {2 (e (c+d x))^{9/2} (a+b \text {arccosh}(c+d x))}{9 e}-\frac {2 b \left (\frac {7}{9} e^2 \left (\frac {6 e^2 \sqrt {-c-d x+1} \sqrt {e (c+d x)} E\left (\left .\arcsin \left (\frac {\sqrt {c+d x+1}}{\sqrt {2}}\right )\right |2\right )}{5 \sqrt {-c-d x} \sqrt {c+d x-1}}+\frac {2}{5} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{3/2}\right )+\frac {2}{9} e \sqrt {c+d x-1} \sqrt {c+d x+1} (e (c+d x))^{7/2}\right )}{9 e}}{d}\) |
((2*(e*(c + d*x))^(9/2)*(a + b*ArcCosh[c + d*x]))/(9*e) - (2*b*((2*e*Sqrt[ -1 + c + d*x]*(e*(c + d*x))^(7/2)*Sqrt[1 + c + d*x])/9 + (7*e^2*((2*e*Sqrt [-1 + c + d*x]*(e*(c + d*x))^(3/2)*Sqrt[1 + c + d*x])/5 + (6*e^2*Sqrt[1 - c - d*x]*Sqrt[e*(c + d*x)]*EllipticE[ArcSin[Sqrt[1 + c + d*x]/Sqrt[2]], 2] )/(5*Sqrt[-c - d*x]*Sqrt[-1 + c + d*x])))/9))/(9*e))/d
3.2.98.3.1 Defintions of rubi rules used
Int[(a_)*(Fx_), x_Symbol] :> Simp[a Int[Fx, x], x] /; FreeQ[a, x] && !Ma tchQ[Fx, (b_)*(Gx_) /; FreeQ[b, x]]
Int[((a_.) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_)*((e_.) + (f_.)*(x_) )^(p_), x_] :> Simp[b*(a + b*x)^(m - 1)*(c + d*x)^(n + 1)*((e + f*x)^(p + 1 )/(d*f*(m + n + p + 1))), x] + Simp[1/(d*f*(m + n + p + 1)) Int[(a + b*x) ^(m - 2)*(c + d*x)^n*(e + f*x)^p*Simp[a^2*d*f*(m + n + p + 1) - b*(b*c*e*(m - 1) + a*(d*e*(n + 1) + c*f*(p + 1))) + b*(a*d*f*(2*m + n + p) - b*(d*e*(m + n) + c*f*(m + p)))*x, x], x], x] /; FreeQ[{a, b, c, d, e, f, n, p}, x] & & GtQ[m, 1] && NeQ[m + n + p + 1, 0] && IntegersQ[2*m, 2*n, 2*p]
Int[Sqrt[(e_.) + (f_.)*(x_)]/(Sqrt[(a_) + (b_.)*(x_)]*Sqrt[(c_) + (d_.)*(x_ )]), x_] :> Simp[(2/b)*Rt[-(b*e - a*f)/d, 2]*EllipticE[ArcSin[Sqrt[a + b*x] /Rt[-(b*c - a*d)/d, 2]], f*((b*c - a*d)/(d*(b*e - a*f)))], x] /; FreeQ[{a, b, c, d, e, f}, x] && GtQ[b/(b*c - a*d), 0] && GtQ[b/(b*e - a*f), 0] && !L tQ[-(b*c - a*d)/d, 0] && !(SimplerQ[c + d*x, a + b*x] && GtQ[-d/(b*c - a*d ), 0] && GtQ[d/(d*e - c*f), 0] && !LtQ[(b*c - a*d)/b, 0])
Int[Sqrt[(e_.) + (f_.)*(x_)]/(Sqrt[(a_) + (b_.)*(x_)]*Sqrt[(c_) + (d_.)*(x_ )]), x_] :> Simp[Sqrt[e + f*x]*(Sqrt[b*((c + d*x)/(b*c - a*d))]/(Sqrt[c + d *x]*Sqrt[b*((e + f*x)/(b*e - a*f))])) Int[Sqrt[b*(e/(b*e - a*f)) + b*f*(x /(b*e - a*f))]/(Sqrt[a + b*x]*Sqrt[b*(c/(b*c - a*d)) + b*d*(x/(b*c - a*d))] ), x], x] /; FreeQ[{a, b, c, d, e, f}, x] && !(GtQ[b/(b*c - a*d), 0] && Gt Q[b/(b*e - a*f), 0]) && !LtQ[-(b*c - a*d)/d, 0]
Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_.)*((d_.)*(x_))^(m_.), x_Symbol] :> Simp[(d*x)^(m + 1)*((a + b*ArcCosh[c*x])^n/(d*(m + 1))), x] - Simp[b*c* (n/(d*(m + 1))) Int[(d*x)^(m + 1)*((a + b*ArcCosh[c*x])^(n - 1)/(Sqrt[1 + c*x]*Sqrt[-1 + c*x])), x], x] /; FreeQ[{a, b, c, d, m}, x] && IGtQ[n, 0] & & NeQ[m, -1]
Int[((a_.) + ArcCosh[(c_) + (d_.)*(x_)]*(b_.))^(n_.)*((e_.) + (f_.)*(x_))^( m_.), x_Symbol] :> Simp[1/d Subst[Int[((d*e - c*f)/d + f*(x/d))^m*(a + b* ArcCosh[x])^n, x], x, c + d*x], x] /; FreeQ[{a, b, c, d, e, f, m, n}, x]
Result contains complex when optimal does not.
Time = 7.44 (sec) , antiderivative size = 276, normalized size of antiderivative = 1.46
| method | result | size |
| derivativedivides | \(\frac {\frac {2 a \left (d e x +c e \right )^{\frac {9}{2}}}{9}+2 b \left (\frac {\left (d e x +c e \right )^{\frac {9}{2}} \operatorname {arccosh}\left (\frac {d e x +c e}{e}\right )}{9}-\frac {2 \left (5 \sqrt {-\frac {1}{e}}\, \left (d e x +c e \right )^{\frac {11}{2}}+2 \sqrt {-\frac {1}{e}}\, e^{2} \left (d e x +c e \right )^{\frac {7}{2}}+21 e^{5} \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {\frac {-d e x -c e +e}{e}}\, \operatorname {EllipticF}\left (\sqrt {d e x +c e}\, \sqrt {-\frac {1}{e}}, i\right )-21 e^{5} \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {\frac {-d e x -c e +e}{e}}\, \operatorname {EllipticE}\left (\sqrt {d e x +c e}\, \sqrt {-\frac {1}{e}}, i\right )-7 \sqrt {-\frac {1}{e}}\, e^{4} \left (d e x +c e \right )^{\frac {3}{2}}\right )}{405 e \sqrt {-\frac {1}{e}}\, \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {-\frac {-d e x -c e +e}{e}}}\right )}{d e}\) | \(276\) |
| default | \(\frac {\frac {2 a \left (d e x +c e \right )^{\frac {9}{2}}}{9}+2 b \left (\frac {\left (d e x +c e \right )^{\frac {9}{2}} \operatorname {arccosh}\left (\frac {d e x +c e}{e}\right )}{9}-\frac {2 \left (5 \sqrt {-\frac {1}{e}}\, \left (d e x +c e \right )^{\frac {11}{2}}+2 \sqrt {-\frac {1}{e}}\, e^{2} \left (d e x +c e \right )^{\frac {7}{2}}+21 e^{5} \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {\frac {-d e x -c e +e}{e}}\, \operatorname {EllipticF}\left (\sqrt {d e x +c e}\, \sqrt {-\frac {1}{e}}, i\right )-21 e^{5} \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {\frac {-d e x -c e +e}{e}}\, \operatorname {EllipticE}\left (\sqrt {d e x +c e}\, \sqrt {-\frac {1}{e}}, i\right )-7 \sqrt {-\frac {1}{e}}\, e^{4} \left (d e x +c e \right )^{\frac {3}{2}}\right )}{405 e \sqrt {-\frac {1}{e}}\, \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {-\frac {-d e x -c e +e}{e}}}\right )}{d e}\) | \(276\) |
| parts | \(\frac {2 a \left (d e x +c e \right )^{\frac {9}{2}}}{9 d e}+\frac {2 b \left (\frac {\left (d e x +c e \right )^{\frac {9}{2}} \operatorname {arccosh}\left (\frac {d e x +c e}{e}\right )}{9}-\frac {2 \left (5 \sqrt {-\frac {1}{e}}\, \left (d e x +c e \right )^{\frac {11}{2}}+2 \sqrt {-\frac {1}{e}}\, e^{2} \left (d e x +c e \right )^{\frac {7}{2}}+21 e^{5} \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {-\frac {d e x +c e -e}{e}}\, \operatorname {EllipticF}\left (\sqrt {d e x +c e}\, \sqrt {-\frac {1}{e}}, i\right )-21 e^{5} \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {-\frac {d e x +c e -e}{e}}\, \operatorname {EllipticE}\left (\sqrt {d e x +c e}\, \sqrt {-\frac {1}{e}}, i\right )-7 \sqrt {-\frac {1}{e}}\, e^{4} \left (d e x +c e \right )^{\frac {3}{2}}\right )}{405 e \sqrt {-\frac {1}{e}}\, \sqrt {\frac {d e x +c e +e}{e}}\, \sqrt {\frac {d e x +c e -e}{e}}}\right )}{d e}\) | \(282\) |
2/d/e*(1/9*a*(d*e*x+c*e)^(9/2)+b*(1/9*(d*e*x+c*e)^(9/2)*arccosh(1/e*(d*e*x +c*e))-2/405/e*(5*(-1/e)^(1/2)*(d*e*x+c*e)^(11/2)+2*(-1/e)^(1/2)*e^2*(d*e* x+c*e)^(7/2)+21*e^5*((d*e*x+c*e+e)/e)^(1/2)*((-d*e*x-c*e+e)/e)^(1/2)*Ellip ticF((d*e*x+c*e)^(1/2)*(-1/e)^(1/2),I)-21*e^5*((d*e*x+c*e+e)/e)^(1/2)*((-d *e*x-c*e+e)/e)^(1/2)*EllipticE((d*e*x+c*e)^(1/2)*(-1/e)^(1/2),I)-7*(-1/e)^ (1/2)*e^4*(d*e*x+c*e)^(3/2))/(-1/e)^(1/2)/((d*e*x+c*e+e)/e)^(1/2)/(-(-d*e* x-c*e+e)/e)^(1/2)))
Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.11 (sec) , antiderivative size = 306, normalized size of antiderivative = 1.62 \[ \int (c e+d e x)^{7/2} (a+b \text {arccosh}(c+d x)) \, dx=\frac {2 \, {\left (42 \, \sqrt {d^{3} e} b e^{3} {\rm weierstrassZeta}\left (\frac {4}{d^{2}}, 0, {\rm weierstrassPInverse}\left (\frac {4}{d^{2}}, 0, \frac {d x + c}{d}\right )\right ) + 45 \, {\left (b d^{5} e^{3} x^{4} + 4 \, b c d^{4} e^{3} x^{3} + 6 \, b c^{2} d^{3} e^{3} x^{2} + 4 \, b c^{3} d^{2} e^{3} x + b c^{4} d e^{3}\right )} \sqrt {d e x + c e} \log \left (d x + c + \sqrt {d^{2} x^{2} + 2 \, c d x + c^{2} - 1}\right ) - 2 \, {\left (5 \, b d^{4} e^{3} x^{3} + 15 \, b c d^{3} e^{3} x^{2} + {\left (15 \, b c^{2} + 7 \, b\right )} d^{2} e^{3} x + {\left (5 \, b c^{3} + 7 \, b c\right )} d e^{3}\right )} \sqrt {d^{2} x^{2} + 2 \, c d x + c^{2} - 1} \sqrt {d e x + c e} + 45 \, {\left (a d^{5} e^{3} x^{4} + 4 \, a c d^{4} e^{3} x^{3} + 6 \, a c^{2} d^{3} e^{3} x^{2} + 4 \, a c^{3} d^{2} e^{3} x + a c^{4} d e^{3}\right )} \sqrt {d e x + c e}\right )}}{405 \, d^{2}} \]
2/405*(42*sqrt(d^3*e)*b*e^3*weierstrassZeta(4/d^2, 0, weierstrassPInverse( 4/d^2, 0, (d*x + c)/d)) + 45*(b*d^5*e^3*x^4 + 4*b*c*d^4*e^3*x^3 + 6*b*c^2* d^3*e^3*x^2 + 4*b*c^3*d^2*e^3*x + b*c^4*d*e^3)*sqrt(d*e*x + c*e)*log(d*x + c + sqrt(d^2*x^2 + 2*c*d*x + c^2 - 1)) - 2*(5*b*d^4*e^3*x^3 + 15*b*c*d^3* e^3*x^2 + (15*b*c^2 + 7*b)*d^2*e^3*x + (5*b*c^3 + 7*b*c)*d*e^3)*sqrt(d^2*x ^2 + 2*c*d*x + c^2 - 1)*sqrt(d*e*x + c*e) + 45*(a*d^5*e^3*x^4 + 4*a*c*d^4* e^3*x^3 + 6*a*c^2*d^3*e^3*x^2 + 4*a*c^3*d^2*e^3*x + a*c^4*d*e^3)*sqrt(d*e* x + c*e))/d^2
Timed out. \[ \int (c e+d e x)^{7/2} (a+b \text {arccosh}(c+d x)) \, dx=\text {Timed out} \]
Exception generated. \[ \int (c e+d e x)^{7/2} (a+b \text {arccosh}(c+d x)) \, dx=\text {Exception raised: ValueError} \]
Exception raised: ValueError >> Computation failed since Maxima requested additional constraints; using the 'assume' command before evaluation *may* help (example of legal syntax is 'assume(e>0)', see `assume?` for more de tails)Is e
\[ \int (c e+d e x)^{7/2} (a+b \text {arccosh}(c+d x)) \, dx=\int { {\left (d e x + c e\right )}^{\frac {7}{2}} {\left (b \operatorname {arcosh}\left (d x + c\right ) + a\right )} \,d x } \]
Timed out. \[ \int (c e+d e x)^{7/2} (a+b \text {arccosh}(c+d x)) \, dx=\int {\left (c\,e+d\,e\,x\right )}^{7/2}\,\left (a+b\,\mathrm {acosh}\left (c+d\,x\right )\right ) \,d x \]