Integrand size = 18, antiderivative size = 62 \[ \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx=\frac {2^{\frac {3}{2}+p} (1-a x)^{-p} \sqrt {1+a x} (c-a c x)^p \operatorname {Hypergeometric2F1}\left (\frac {1}{2},-\frac {1}{2}-p,\frac {3}{2},\frac {1}{2} (1+a x)\right )}{a} \] Output:
2^(3/2+p)*(a*x+1)^(1/2)*(-a*c*x+c)^p*hypergeom([1/2, -1/2-p],[3/2],1/2*a*x +1/2)/a/((-a*x+1)^p)
Time = 0.03 (sec) , antiderivative size = 59, normalized size of antiderivative = 0.95 \[ \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx=\frac {\sqrt {2-2 a x} (-1+a x) (c-a c x)^p \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {3}{2}+p,\frac {5}{2}+p,\frac {1}{2}-\frac {a x}{2}\right )}{a (3+2 p)} \] Input:
Integrate[(c - a*c*x)^p/E^ArcTanh[a*x],x]
Output:
(Sqrt[2 - 2*a*x]*(-1 + a*x)*(c - a*c*x)^p*Hypergeometric2F1[1/2, 3/2 + p, 5/2 + p, 1/2 - (a*x)/2])/(a*(3 + 2*p))
Time = 0.38 (sec) , antiderivative size = 62, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {6680, 37, 79}
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.
\(\displaystyle \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx\) |
\(\Big \downarrow \) 6680 |
\(\displaystyle \int \frac {\sqrt {1-a x} (c-a c x)^p}{\sqrt {a x+1}}dx\) |
\(\Big \downarrow \) 37 |
\(\displaystyle (1-a x)^{-p} (c-a c x)^p \int \frac {(1-a x)^{p+\frac {1}{2}}}{\sqrt {a x+1}}dx\) |
\(\Big \downarrow \) 79 |
\(\displaystyle \frac {2^{p+\frac {3}{2}} \sqrt {a x+1} (1-a x)^{-p} (c-a c x)^p \operatorname {Hypergeometric2F1}\left (\frac {1}{2},-p-\frac {1}{2},\frac {3}{2},\frac {1}{2} (a x+1)\right )}{a}\) |
Input:
Int[(c - a*c*x)^p/E^ArcTanh[a*x],x]
Output:
(2^(3/2 + p)*Sqrt[1 + a*x]*(c - a*c*x)^p*Hypergeometric2F1[1/2, -1/2 - p, 3/2, (1 + a*x)/2])/(a*(1 - a*x)^p)
Int[(u_.)*((a_) + (b_.)*(x_))^(m_)*((c_) + (d_.)*(x_))^(n_), x_Symbol] :> S imp[(a + b*x)^m/(c + d*x)^m Int[u*(c + d*x)^(m + n), x], x] /; FreeQ[{a, b, c, d, m, n}, x] && EqQ[b*c - a*d, 0] && !SimplerQ[a + b*x, c + d*x]
Int[((a_) + (b_.)*(x_))^(m_)*((c_) + (d_.)*(x_))^(n_), x_Symbol] :> Simp[(( a + b*x)^(m + 1)/(b*(m + 1)*(b/(b*c - a*d))^n))*Hypergeometric2F1[-n, m + 1 , m + 2, (-d)*((a + b*x)/(b*c - a*d))], x] /; FreeQ[{a, b, c, d, m, n}, x] && !IntegerQ[m] && !IntegerQ[n] && GtQ[b/(b*c - a*d), 0] && (RationalQ[m] || !(RationalQ[n] && GtQ[-d/(b*c - a*d), 0]))
Int[E^(ArcTanh[(a_.)*(x_)]*(n_.))*(u_.)*((c_) + (d_.)*(x_))^(p_.), x_Symbol ] :> Int[u*(c + d*x)^p*((1 + a*x)^(n/2)/(1 - a*x)^(n/2)), x] /; FreeQ[{a, c , d, n, p}, x] && EqQ[a^2*c^2 - d^2, 0] && !(IntegerQ[p] || GtQ[c, 0])
\[\int \frac {\left (-a c x +c \right )^{p} \sqrt {-a^{2} x^{2}+1}}{a x +1}d x\]
Input:
int((-a*c*x+c)^p/(a*x+1)*(-a^2*x^2+1)^(1/2),x)
Output:
int((-a*c*x+c)^p/(a*x+1)*(-a^2*x^2+1)^(1/2),x)
\[ \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx=\int { \frac {\sqrt {-a^{2} x^{2} + 1} {\left (-a c x + c\right )}^{p}}{a x + 1} \,d x } \] Input:
integrate((-a*c*x+c)^p/(a*x+1)*(-a^2*x^2+1)^(1/2),x, algorithm="fricas")
Output:
integral(sqrt(-a^2*x^2 + 1)*(-a*c*x + c)^p/(a*x + 1), x)
\[ \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx=\int \frac {\left (- c \left (a x - 1\right )\right )^{p} \sqrt {- \left (a x - 1\right ) \left (a x + 1\right )}}{a x + 1}\, dx \] Input:
integrate((-a*c*x+c)**p/(a*x+1)*(-a**2*x**2+1)**(1/2),x)
Output:
Integral((-c*(a*x - 1))**p*sqrt(-(a*x - 1)*(a*x + 1))/(a*x + 1), x)
\[ \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx=\int { \frac {\sqrt {-a^{2} x^{2} + 1} {\left (-a c x + c\right )}^{p}}{a x + 1} \,d x } \] Input:
integrate((-a*c*x+c)^p/(a*x+1)*(-a^2*x^2+1)^(1/2),x, algorithm="maxima")
Output:
integrate(sqrt(-a^2*x^2 + 1)*(-a*c*x + c)^p/(a*x + 1), x)
\[ \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx=\int { \frac {\sqrt {-a^{2} x^{2} + 1} {\left (-a c x + c\right )}^{p}}{a x + 1} \,d x } \] Input:
integrate((-a*c*x+c)^p/(a*x+1)*(-a^2*x^2+1)^(1/2),x, algorithm="giac")
Output:
integrate(sqrt(-a^2*x^2 + 1)*(-a*c*x + c)^p/(a*x + 1), x)
Timed out. \[ \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx=\int \frac {\sqrt {1-a^2\,x^2}\,{\left (c-a\,c\,x\right )}^p}{a\,x+1} \,d x \] Input:
int(((1 - a^2*x^2)^(1/2)*(c - a*c*x)^p)/(a*x + 1),x)
Output:
int(((1 - a^2*x^2)^(1/2)*(c - a*c*x)^p)/(a*x + 1), x)
\[ \int e^{-\text {arctanh}(a x)} (c-a c x)^p \, dx=\int \frac {\left (-a c x +c \right )^{p} \sqrt {-a^{2} x^{2}+1}}{a x +1}d x \] Input:
int((-a*c*x+c)^p/(a*x+1)*(-a^2*x^2+1)^(1/2),x)
Output:
int((( - a*c*x + c)**p*sqrt( - a**2*x**2 + 1))/(a*x + 1),x)