Integrand size = 27, antiderivative size = 81 \[ \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx=\frac {10 a \sqrt {c-\frac {c}{a x}} \sqrt {1+a x}}{3 \sqrt {1-a x}}-\frac {2 \sqrt {c-\frac {c}{a x}} \sqrt {1+a x}}{3 x \sqrt {1-a x}} \] Output:
10/3*a*(c-c/a/x)^(1/2)*(a*x+1)^(1/2)/(-a*x+1)^(1/2)-2/3*(c-c/a/x)^(1/2)*(a *x+1)^(1/2)/x/(-a*x+1)^(1/2)
Time = 0.04 (sec) , antiderivative size = 47, normalized size of antiderivative = 0.58 \[ \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx=\frac {2 \sqrt {c-\frac {c}{a x}} \sqrt {1+a x} (-1+5 a x)}{3 x \sqrt {1-a x}} \] Input:
Integrate[Sqrt[c - c/(a*x)]/(E^ArcTanh[a*x]*x^2),x]
Output:
(2*Sqrt[c - c/(a*x)]*Sqrt[1 + a*x]*(-1 + 5*a*x))/(3*x*Sqrt[1 - a*x])
Time = 0.77 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.85, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.185, Rules used = {6684, 6678, 516, 87, 48}
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.
\(\displaystyle \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx\) |
\(\Big \downarrow \) 6684 |
\(\displaystyle \frac {\sqrt {x} \sqrt {c-\frac {c}{a x}} \int \frac {e^{-\text {arctanh}(a x)} \sqrt {1-a x}}{x^{5/2}}dx}{\sqrt {1-a x}}\) |
\(\Big \downarrow \) 6678 |
\(\displaystyle \frac {\sqrt {x} \sqrt {c-\frac {c}{a x}} \int \frac {(1-a x)^{3/2}}{x^{5/2} \sqrt {1-a^2 x^2}}dx}{\sqrt {1-a x}}\) |
\(\Big \downarrow \) 516 |
\(\displaystyle \frac {\sqrt {x} \sqrt {c-\frac {c}{a x}} \int \frac {1-a x}{x^{5/2} \sqrt {a x+1}}dx}{\sqrt {1-a x}}\) |
\(\Big \downarrow \) 87 |
\(\displaystyle \frac {\sqrt {x} \sqrt {c-\frac {c}{a x}} \left (-\frac {5}{3} a \int \frac {1}{x^{3/2} \sqrt {a x+1}}dx-\frac {2 \sqrt {a x+1}}{3 x^{3/2}}\right )}{\sqrt {1-a x}}\) |
\(\Big \downarrow \) 48 |
\(\displaystyle \frac {\sqrt {x} \left (\frac {10 a \sqrt {a x+1}}{3 \sqrt {x}}-\frac {2 \sqrt {a x+1}}{3 x^{3/2}}\right ) \sqrt {c-\frac {c}{a x}}}{\sqrt {1-a x}}\) |
Input:
Int[Sqrt[c - c/(a*x)]/(E^ArcTanh[a*x]*x^2),x]
Output:
(Sqrt[c - c/(a*x)]*Sqrt[x]*((-2*Sqrt[1 + a*x])/(3*x^(3/2)) + (10*a*Sqrt[1 + a*x])/(3*Sqrt[x])))/Sqrt[1 - a*x]
Int[((a_.) + (b_.)*(x_))^(m_.)*((c_.) + (d_.)*(x_))^(n_), x_Symbol] :> Simp [(a + b*x)^(m + 1)*((c + d*x)^(n + 1)/((b*c - a*d)*(m + 1))), x] /; FreeQ[{ a, b, c, d, m, n}, x] && EqQ[m + n + 2, 0] && NeQ[m, -1]
Int[((a_.) + (b_.)*(x_))*((c_.) + (d_.)*(x_))^(n_.)*((e_.) + (f_.)*(x_))^(p _.), x_] :> Simp[(-(b*e - a*f))*(c + d*x)^(n + 1)*((e + f*x)^(p + 1)/(f*(p + 1)*(c*f - d*e))), x] - Simp[(a*d*f*(n + p + 2) - b*(d*e*(n + 1) + c*f*(p + 1)))/(f*(p + 1)*(c*f - d*e)) Int[(c + d*x)^n*(e + f*x)^(p + 1), x], x] /; FreeQ[{a, b, c, d, e, f, n}, x] && LtQ[p, -1] && ( !LtQ[n, -1] || Intege rQ[p] || !(IntegerQ[n] || !(EqQ[e, 0] || !(EqQ[c, 0] || LtQ[p, n]))))
Int[((e_.)*(x_))^(m_.)*((c_) + (d_.)*(x_))^(n_.)*((a_) + (b_.)*(x_)^2)^(p_. ), x_Symbol] :> Int[(e*x)^m*(c + d*x)^(n + p)*(a/c + (b/d)*x)^p, x] /; Free Q[{a, b, c, d, e, m, n, p}, x] && EqQ[b*c^2 + a*d^2, 0] && (IntegerQ[p] || (GtQ[a, 0] && GtQ[c, 0] && !IntegerQ[n]))
Int[E^(ArcTanh[(a_.)*(x_)]*(n_.))*((c_) + (d_.)*(x_))^(p_.)*((e_.) + (f_.)* (x_))^(m_.), x_Symbol] :> Simp[c^n Int[(e + f*x)^m*(c + d*x)^(p - n)*(1 - a^2*x^2)^(n/2), x], x] /; FreeQ[{a, c, d, e, f, m, p}, x] && EqQ[a*c + d, 0] && IntegerQ[(n - 1)/2] && (IntegerQ[p] || EqQ[p, n/2] || EqQ[p - n/2 - 1 , 0]) && IntegerQ[2*p]
Int[E^(ArcTanh[(a_.)*(x_)]*(n_.))*(u_.)*((c_) + (d_.)/(x_))^(p_), x_Symbol] :> Simp[x^p*((c + d/x)^p/(1 + c*(x/d))^p) Int[u*(1 + c*(x/d))^p*(E^(n*Ar cTanh[a*x])/x^p), x], x] /; FreeQ[{a, c, d, n, p}, x] && EqQ[c^2 - a^2*d^2, 0] && !IntegerQ[p]
Time = 0.11 (sec) , antiderivative size = 44, normalized size of antiderivative = 0.54
method | result | size |
orering | \(-\frac {2 \sqrt {c -\frac {c}{a x}}\, \sqrt {-a^{2} x^{2}+1}\, \left (5 a x -1\right )}{3 x \left (a x -1\right )}\) | \(44\) |
gosper | \(-\frac {2 \left (5 a x -1\right ) \sqrt {\frac {c \left (a x -1\right )}{a x}}\, \sqrt {-a^{2} x^{2}+1}}{3 x \left (a x -1\right )}\) | \(46\) |
default | \(-\frac {2 \left (5 a x -1\right ) \sqrt {\frac {c \left (a x -1\right )}{a x}}\, \sqrt {-a^{2} x^{2}+1}}{3 x \left (a x -1\right )}\) | \(46\) |
risch | \(\frac {2 \sqrt {\frac {c \left (a x -1\right )}{a x}}\, \sqrt {\frac {c a x \left (-a^{2} x^{2}+1\right )}{a x -1}}\, \left (5 a^{2} x^{2}+4 a x -1\right )}{3 \sqrt {-a^{2} x^{2}+1}\, x \sqrt {-\left (a x +1\right ) a c x}}\) | \(82\) |
Input:
int((c-c/a/x)^(1/2)/(a*x+1)*(-a^2*x^2+1)^(1/2)/x^2,x,method=_RETURNVERBOSE )
Output:
-2/3*(c-c/a/x)^(1/2)/x*(-a^2*x^2+1)^(1/2)*(5*a*x-1)/(a*x-1)
Time = 0.07 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.59 \[ \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx=-\frac {2 \, \sqrt {-a^{2} x^{2} + 1} {\left (5 \, a x - 1\right )} \sqrt {\frac {a c x - c}{a x}}}{3 \, {\left (a x^{2} - x\right )}} \] Input:
integrate((c-c/a/x)^(1/2)/(a*x+1)*(-a^2*x^2+1)^(1/2)/x^2,x, algorithm="fri cas")
Output:
-2/3*sqrt(-a^2*x^2 + 1)*(5*a*x - 1)*sqrt((a*c*x - c)/(a*x))/(a*x^2 - x)
\[ \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx=\int \frac {\sqrt {- c \left (-1 + \frac {1}{a x}\right )} \sqrt {- \left (a x - 1\right ) \left (a x + 1\right )}}{x^{2} \left (a x + 1\right )}\, dx \] Input:
integrate((c-c/a/x)**(1/2)/(a*x+1)*(-a**2*x**2+1)**(1/2)/x**2,x)
Output:
Integral(sqrt(-c*(-1 + 1/(a*x)))*sqrt(-(a*x - 1)*(a*x + 1))/(x**2*(a*x + 1 )), x)
\[ \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx=\int { \frac {\sqrt {-a^{2} x^{2} + 1} \sqrt {c - \frac {c}{a x}}}{{\left (a x + 1\right )} x^{2}} \,d x } \] Input:
integrate((c-c/a/x)^(1/2)/(a*x+1)*(-a^2*x^2+1)^(1/2)/x^2,x, algorithm="max ima")
Output:
integrate(sqrt(-a^2*x^2 + 1)*sqrt(c - c/(a*x))/((a*x + 1)*x^2), x)
\[ \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx=\int { \frac {\sqrt {-a^{2} x^{2} + 1} \sqrt {c - \frac {c}{a x}}}{{\left (a x + 1\right )} x^{2}} \,d x } \] Input:
integrate((c-c/a/x)^(1/2)/(a*x+1)*(-a^2*x^2+1)^(1/2)/x^2,x, algorithm="gia c")
Output:
integrate(sqrt(-a^2*x^2 + 1)*sqrt(c - c/(a*x))/((a*x + 1)*x^2), x)
Time = 23.00 (sec) , antiderivative size = 60, normalized size of antiderivative = 0.74 \[ \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx=\frac {\sqrt {c-\frac {c}{a\,x}}\,\left (\frac {10\,x\,\sqrt {1-a^2\,x^2}}{3}-\frac {2\,\sqrt {1-a^2\,x^2}}{3\,a}\right )}{\frac {x}{a}-x^2} \] Input:
int(((c - c/(a*x))^(1/2)*(1 - a^2*x^2)^(1/2))/(x^2*(a*x + 1)),x)
Output:
((c - c/(a*x))^(1/2)*((10*x*(1 - a^2*x^2)^(1/2))/3 - (2*(1 - a^2*x^2)^(1/2 ))/(3*a)))/(x/a - x^2)
Time = 0.14 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.56 \[ \int \frac {e^{-\text {arctanh}(a x)} \sqrt {c-\frac {c}{a x}}}{x^2} \, dx=\frac {2 \sqrt {c}\, i \left (-5 \sqrt {x}\, \sqrt {a}\, \sqrt {a x +1}\, a x +\sqrt {x}\, \sqrt {a}\, \sqrt {a x +1}+3 a^{2} x^{2}\right )}{3 a \,x^{2}} \] Input:
int((c-c/a/x)^(1/2)/(a*x+1)*(-a^2*x^2+1)^(1/2)/x^2,x)
Output:
(2*sqrt(c)*i*( - 5*sqrt(x)*sqrt(a)*sqrt(a*x + 1)*a*x + sqrt(x)*sqrt(a)*sqr t(a*x + 1) + 3*a**2*x**2))/(3*a*x**2)