Integrand size = 24, antiderivative size = 111 \[ \int \frac {e^{2 \coth ^{-1}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}} \, dx=-\frac {2 (1-a x) (1+a x)}{a^2 \sqrt {c-\frac {c}{a^2 x^2}} x}-\frac {(1+a x)^2}{a^2 \sqrt {c-\frac {c}{a^2 x^2}} x}+\frac {2 \sqrt {1-a x} \sqrt {1+a x} \arcsin (a x)}{a^2 \sqrt {c-\frac {c}{a^2 x^2}} x} \]
-2*(-a*x+1)*(a*x+1)/a^2/x/(c-c/a^2/x^2)^(1/2)-(a*x+1)^2/a^2/x/(c-c/a^2/x^2 )^(1/2)+2*arcsin(a*x)*(-a*x+1)^(1/2)*(a*x+1)^(1/2)/a^2/x/(c-c/a^2/x^2)^(1/ 2)
Time = 0.17 (sec) , antiderivative size = 68, normalized size of antiderivative = 0.61 \[ \int \frac {e^{2 \coth ^{-1}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}} \, dx=\frac {-3-2 a x+a^2 x^2+2 \sqrt {-1+a^2 x^2} \log \left (a x+\sqrt {-1+a^2 x^2}\right )}{a^2 \sqrt {c-\frac {c}{a^2 x^2}} x} \]
(-3 - 2*a*x + a^2*x^2 + 2*Sqrt[-1 + a^2*x^2]*Log[a*x + Sqrt[-1 + a^2*x^2]] )/(a^2*Sqrt[c - c/(a^2*x^2)]*x)
Time = 0.40 (sec) , antiderivative size = 93, normalized size of antiderivative = 0.84, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.208, Rules used = {6717, 6709, 527, 455, 223}
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.
\(\displaystyle \int \frac {e^{2 \coth ^{-1}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}} \, dx\) |
\(\Big \downarrow \) 6717 |
\(\displaystyle -\int \frac {e^{2 \text {arctanh}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}}dx\) |
\(\Big \downarrow \) 6709 |
\(\displaystyle -\frac {\sqrt {1-a^2 x^2} \int \frac {x (a x+1)^2}{\left (1-a^2 x^2\right )^{3/2}}dx}{x \sqrt {c-\frac {c}{a^2 x^2}}}\) |
\(\Big \downarrow \) 527 |
\(\displaystyle -\frac {\sqrt {1-a^2 x^2} \left (\frac {2 (a x+1)}{a^2 \sqrt {1-a^2 x^2}}-\frac {\int \frac {a x+2}{\sqrt {1-a^2 x^2}}dx}{a}\right )}{x \sqrt {c-\frac {c}{a^2 x^2}}}\) |
\(\Big \downarrow \) 455 |
\(\displaystyle -\frac {\sqrt {1-a^2 x^2} \left (\frac {2 (a x+1)}{a^2 \sqrt {1-a^2 x^2}}-\frac {2 \int \frac {1}{\sqrt {1-a^2 x^2}}dx-\frac {\sqrt {1-a^2 x^2}}{a}}{a}\right )}{x \sqrt {c-\frac {c}{a^2 x^2}}}\) |
\(\Big \downarrow \) 223 |
\(\displaystyle -\frac {\sqrt {1-a^2 x^2} \left (\frac {2 (a x+1)}{a^2 \sqrt {1-a^2 x^2}}-\frac {\frac {2 \arcsin (a x)}{a}-\frac {\sqrt {1-a^2 x^2}}{a}}{a}\right )}{x \sqrt {c-\frac {c}{a^2 x^2}}}\) |
-((Sqrt[1 - a^2*x^2]*((2*(1 + a*x))/(a^2*Sqrt[1 - a^2*x^2]) - (-(Sqrt[1 - a^2*x^2]/a) + (2*ArcSin[a*x])/a)/a))/(Sqrt[c - c/(a^2*x^2)]*x))
3.9.42.3.1 Defintions of rubi rules used
Int[1/Sqrt[(a_) + (b_.)*(x_)^2], x_Symbol] :> Simp[ArcSin[Rt[-b, 2]*(x/Sqrt [a])]/Rt[-b, 2], x] /; FreeQ[{a, b}, x] && GtQ[a, 0] && NegQ[b]
Int[((c_) + (d_.)*(x_))*((a_) + (b_.)*(x_)^2)^(p_.), x_Symbol] :> Simp[d*(( a + b*x^2)^(p + 1)/(2*b*(p + 1))), x] + Simp[c Int[(a + b*x^2)^p, x], x] /; FreeQ[{a, b, c, d, p}, x] && !LeQ[p, -1]
Int[((x_)^(m_.)*((c_) + (d_.)*(x_))^(n_.))/((a_) + (b_.)*(x_)^2)^(3/2), x_S ymbol] :> Simp[(-2^(n - 1))*c^(m + n - 2)*((c + d*x)/(b*d^(m - 1)*Sqrt[a + b*x^2])), x] + Simp[1/(b*d^(m - 2)) Int[(1/Sqrt[a + b*x^2])*ExpandToSum[( 2^(n - 1)*c^(m + n - 1) - d^m*x^m*(c + d*x)^(n - 1))/(c - d*x), x], x], x] /; FreeQ[{a, b, c, d}, x] && IGtQ[n, 0] && IGtQ[m, 0] && EqQ[b*c^2 + a*d^2, 0]
Int[E^(ArcTanh[(a_.)*(x_)]*(n_.))*(u_.)*((c_) + (d_.)/(x_)^2)^(p_), x_Symbo l] :> Simp[x^(2*p)*((c + d/x^2)^p/(1 - a^2*x^2)^p) Int[u*((1 + a*x)^n/(x^ (2*p)*(1 - a^2*x^2)^(n/2 - p))), x], x] /; FreeQ[{a, c, d, p}, x] && EqQ[c + a^2*d, 0] && !IntegerQ[p] && IntegerQ[n/2] && !GtQ[c, 0]
Int[E^(ArcCoth[(a_.)*(x_)]*(n_))*(u_.), x_Symbol] :> Simp[(-1)^(n/2) Int[ u*E^(n*ArcTanh[a*x]), x], x] /; FreeQ[a, x] && IntegerQ[n/2]
Time = 0.55 (sec) , antiderivative size = 160, normalized size of antiderivative = 1.44
method | result | size |
risch | \(\frac {a^{2} x^{2}-1}{a^{2} x \sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2} x^{2}}}}+\frac {\left (\frac {2 \ln \left (\frac {a^{2} c x}{\sqrt {a^{2} c}}+\sqrt {a^{2} c \,x^{2}-c}\right )}{a \sqrt {a^{2} c}}-\frac {2 \sqrt {a^{2} c \left (x -\frac {1}{a}\right )^{2}+2 \left (x -\frac {1}{a}\right ) a c}}{a^{3} c \left (x -\frac {1}{a}\right )}\right ) \sqrt {c \left (a^{2} x^{2}-1\right )}}{\sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2} x^{2}}}\, x}\) | \(160\) |
default | \(\frac {\sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2}}}\, \left (\sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2}}}\, \sqrt {c}\, a^{2} x +2 \ln \left (\sqrt {c}\, x +\sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2}}}\right ) a c x -2 a \sqrt {\frac {c \left (a x -1\right ) \left (a x +1\right )}{a^{2}}}\, \sqrt {c}-\sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2}}}\, a \sqrt {c}-2 \ln \left (\sqrt {c}\, x +\sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2}}}\right ) c \right )}{\sqrt {\frac {c \left (a^{2} x^{2}-1\right )}{a^{2} x^{2}}}\, x \,c^{\frac {3}{2}} a \left (a x -1\right )}\) | \(177\) |
1/a^2*(a^2*x^2-1)/x/(c*(a^2*x^2-1)/a^2/x^2)^(1/2)+(2/a*ln(a^2*c*x/(a^2*c)^ (1/2)+(a^2*c*x^2-c)^(1/2))/(a^2*c)^(1/2)-2/a^3/c/(x-1/a)*(a^2*c*(x-1/a)^2+ 2*(x-1/a)*a*c)^(1/2))/(c*(a^2*x^2-1)/a^2/x^2)^(1/2)*(c*(a^2*x^2-1))^(1/2)/ x
Time = 0.27 (sec) , antiderivative size = 216, normalized size of antiderivative = 1.95 \[ \int \frac {e^{2 \coth ^{-1}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}} \, dx=\left [\frac {{\left (a x - 1\right )} \sqrt {c} \log \left (2 \, a^{2} c x^{2} + 2 \, a^{2} \sqrt {c} x^{2} \sqrt {\frac {a^{2} c x^{2} - c}{a^{2} x^{2}}} - c\right ) + {\left (a^{2} x^{2} - 3 \, a x\right )} \sqrt {\frac {a^{2} c x^{2} - c}{a^{2} x^{2}}}}{a^{2} c x - a c}, -\frac {2 \, {\left (a x - 1\right )} \sqrt {-c} \arctan \left (\frac {a^{2} \sqrt {-c} x^{2} \sqrt {\frac {a^{2} c x^{2} - c}{a^{2} x^{2}}}}{a^{2} c x^{2} - c}\right ) - {\left (a^{2} x^{2} - 3 \, a x\right )} \sqrt {\frac {a^{2} c x^{2} - c}{a^{2} x^{2}}}}{a^{2} c x - a c}\right ] \]
[((a*x - 1)*sqrt(c)*log(2*a^2*c*x^2 + 2*a^2*sqrt(c)*x^2*sqrt((a^2*c*x^2 - c)/(a^2*x^2)) - c) + (a^2*x^2 - 3*a*x)*sqrt((a^2*c*x^2 - c)/(a^2*x^2)))/(a ^2*c*x - a*c), -(2*(a*x - 1)*sqrt(-c)*arctan(a^2*sqrt(-c)*x^2*sqrt((a^2*c* x^2 - c)/(a^2*x^2))/(a^2*c*x^2 - c)) - (a^2*x^2 - 3*a*x)*sqrt((a^2*c*x^2 - c)/(a^2*x^2)))/(a^2*c*x - a*c)]
\[ \int \frac {e^{2 \coth ^{-1}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}} \, dx=\int \frac {a x + 1}{\sqrt {- c \left (-1 + \frac {1}{a x}\right ) \left (1 + \frac {1}{a x}\right )} \left (a x - 1\right )}\, dx \]
\[ \int \frac {e^{2 \coth ^{-1}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}} \, dx=\int { \frac {a x + 1}{{\left (a x - 1\right )} \sqrt {c - \frac {c}{a^{2} x^{2}}}} \,d x } \]
Exception generated. \[ \int \frac {e^{2 \coth ^{-1}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}} \, dx=\text {Exception raised: TypeError} \]
Exception raised: TypeError >> an error occurred running a Giac command:IN PUT:sage2:=int(sage0,sageVARx):;OUTPUT:index.cc index_m i_lex_is_greater E rror: Bad Argument Value
Timed out. \[ \int \frac {e^{2 \coth ^{-1}(a x)}}{\sqrt {c-\frac {c}{a^2 x^2}}} \, dx=\int \frac {a\,x+1}{\sqrt {c-\frac {c}{a^2\,x^2}}\,\left (a\,x-1\right )} \,d x \]