Integrand size = 25, antiderivative size = 124 \[ \int \frac {x^2 (a+b \text {arccosh}(c x))}{\left (d-c^2 d x^2\right )^2} \, dx=-\frac {b}{2 c^3 d^2 \sqrt {-1+c x} \sqrt {1+c x}}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}-\frac {(a+b \text {arccosh}(c x)) \text {arctanh}\left (e^{\text {arccosh}(c x)}\right )}{c^3 d^2}-\frac {b \operatorname {PolyLog}\left (2,-e^{\text {arccosh}(c x)}\right )}{2 c^3 d^2}+\frac {b \operatorname {PolyLog}\left (2,e^{\text {arccosh}(c x)}\right )}{2 c^3 d^2} \]
1/2*x*(a+b*arccosh(c*x))/c^2/d^2/(-c^2*x^2+1)-(a+b*arccosh(c*x))*arctanh(c *x+(c*x-1)^(1/2)*(c*x+1)^(1/2))/c^3/d^2-1/2*b*polylog(2,-c*x-(c*x-1)^(1/2) *(c*x+1)^(1/2))/c^3/d^2+1/2*b*polylog(2,c*x+(c*x-1)^(1/2)*(c*x+1)^(1/2))/c ^3/d^2-1/2*b/c^3/d^2/(c*x-1)^(1/2)/(c*x+1)^(1/2)
Time = 0.61 (sec) , antiderivative size = 206, normalized size of antiderivative = 1.66 \[ \int \frac {x^2 (a+b \text {arccosh}(c x))}{\left (d-c^2 d x^2\right )^2} \, dx=\frac {b \sqrt {\frac {-1+c x}{1+c x}}+\frac {b \sqrt {\frac {-1+c x}{1+c x}}}{1-c x}+\frac {b c x \sqrt {\frac {-1+c x}{1+c x}}}{1-c x}-\frac {2 a c x}{-1+c^2 x^2}+\frac {b \text {arccosh}(c x)}{1-c x}-\frac {b \text {arccosh}(c x)}{1+c x}+2 b \text {arccosh}(c x) \log \left (1-e^{\text {arccosh}(c x)}\right )-2 b \text {arccosh}(c x) \log \left (1+e^{\text {arccosh}(c x)}\right )+a \log (1-c x)-a \log (1+c x)-2 b \operatorname {PolyLog}\left (2,-e^{\text {arccosh}(c x)}\right )+2 b \operatorname {PolyLog}\left (2,e^{\text {arccosh}(c x)}\right )}{4 c^3 d^2} \]
(b*Sqrt[(-1 + c*x)/(1 + c*x)] + (b*Sqrt[(-1 + c*x)/(1 + c*x)])/(1 - c*x) + (b*c*x*Sqrt[(-1 + c*x)/(1 + c*x)])/(1 - c*x) - (2*a*c*x)/(-1 + c^2*x^2) + (b*ArcCosh[c*x])/(1 - c*x) - (b*ArcCosh[c*x])/(1 + c*x) + 2*b*ArcCosh[c*x ]*Log[1 - E^ArcCosh[c*x]] - 2*b*ArcCosh[c*x]*Log[1 + E^ArcCosh[c*x]] + a*L og[1 - c*x] - a*Log[1 + c*x] - 2*b*PolyLog[2, -E^ArcCosh[c*x]] + 2*b*PolyL og[2, E^ArcCosh[c*x]])/(4*c^3*d^2)
Result contains complex when optimal does not.
Time = 0.57 (sec) , antiderivative size = 121, normalized size of antiderivative = 0.98, number of steps used = 10, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.360, Rules used = {6349, 27, 83, 6318, 3042, 26, 4670, 2715, 2838}
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.
\(\displaystyle \int \frac {x^2 (a+b \text {arccosh}(c x))}{\left (d-c^2 d x^2\right )^2} \, dx\) |
\(\Big \downarrow \) 6349 |
\(\displaystyle -\frac {\int \frac {a+b \text {arccosh}(c x)}{d \left (1-c^2 x^2\right )}dx}{2 c^2 d}+\frac {b \int \frac {x}{(c x-1)^{3/2} (c x+1)^{3/2}}dx}{2 c d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}\) |
\(\Big \downarrow \) 27 |
\(\displaystyle -\frac {\int \frac {a+b \text {arccosh}(c x)}{1-c^2 x^2}dx}{2 c^2 d^2}+\frac {b \int \frac {x}{(c x-1)^{3/2} (c x+1)^{3/2}}dx}{2 c d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}\) |
\(\Big \downarrow \) 83 |
\(\displaystyle -\frac {\int \frac {a+b \text {arccosh}(c x)}{1-c^2 x^2}dx}{2 c^2 d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}-\frac {b}{2 c^3 d^2 \sqrt {c x-1} \sqrt {c x+1}}\) |
\(\Big \downarrow \) 6318 |
\(\displaystyle \frac {\int \frac {a+b \text {arccosh}(c x)}{\sqrt {\frac {c x-1}{c x+1}} (c x+1)}d\text {arccosh}(c x)}{2 c^3 d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}-\frac {b}{2 c^3 d^2 \sqrt {c x-1} \sqrt {c x+1}}\) |
\(\Big \downarrow \) 3042 |
\(\displaystyle \frac {\int i (a+b \text {arccosh}(c x)) \csc (i \text {arccosh}(c x))d\text {arccosh}(c x)}{2 c^3 d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}-\frac {b}{2 c^3 d^2 \sqrt {c x-1} \sqrt {c x+1}}\) |
\(\Big \downarrow \) 26 |
\(\displaystyle \frac {i \int (a+b \text {arccosh}(c x)) \csc (i \text {arccosh}(c x))d\text {arccosh}(c x)}{2 c^3 d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}-\frac {b}{2 c^3 d^2 \sqrt {c x-1} \sqrt {c x+1}}\) |
\(\Big \downarrow \) 4670 |
\(\displaystyle \frac {i \left (i b \int \log \left (1-e^{\text {arccosh}(c x)}\right )d\text {arccosh}(c x)-i b \int \log \left (1+e^{\text {arccosh}(c x)}\right )d\text {arccosh}(c x)+2 i \text {arctanh}\left (e^{\text {arccosh}(c x)}\right ) (a+b \text {arccosh}(c x))\right )}{2 c^3 d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}-\frac {b}{2 c^3 d^2 \sqrt {c x-1} \sqrt {c x+1}}\) |
\(\Big \downarrow \) 2715 |
\(\displaystyle \frac {i \left (i b \int e^{-\text {arccosh}(c x)} \log \left (1-e^{\text {arccosh}(c x)}\right )de^{\text {arccosh}(c x)}-i b \int e^{-\text {arccosh}(c x)} \log \left (1+e^{\text {arccosh}(c x)}\right )de^{\text {arccosh}(c x)}+2 i \text {arctanh}\left (e^{\text {arccosh}(c x)}\right ) (a+b \text {arccosh}(c x))\right )}{2 c^3 d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}-\frac {b}{2 c^3 d^2 \sqrt {c x-1} \sqrt {c x+1}}\) |
\(\Big \downarrow \) 2838 |
\(\displaystyle \frac {i \left (2 i \text {arctanh}\left (e^{\text {arccosh}(c x)}\right ) (a+b \text {arccosh}(c x))+i b \operatorname {PolyLog}\left (2,-e^{\text {arccosh}(c x)}\right )-i b \operatorname {PolyLog}\left (2,e^{\text {arccosh}(c x)}\right )\right )}{2 c^3 d^2}+\frac {x (a+b \text {arccosh}(c x))}{2 c^2 d^2 \left (1-c^2 x^2\right )}-\frac {b}{2 c^3 d^2 \sqrt {c x-1} \sqrt {c x+1}}\) |
-1/2*b/(c^3*d^2*Sqrt[-1 + c*x]*Sqrt[1 + c*x]) + (x*(a + b*ArcCosh[c*x]))/( 2*c^2*d^2*(1 - c^2*x^2)) + ((I/2)*((2*I)*(a + b*ArcCosh[c*x])*ArcTanh[E^Ar cCosh[c*x]] + I*b*PolyLog[2, -E^ArcCosh[c*x]] - I*b*PolyLog[2, E^ArcCosh[c *x]]))/(c^3*d^2)
3.1.39.3.1 Defintions of rubi rules used
Int[(Complex[0, a_])*(Fx_), x_Symbol] :> Simp[(Complex[Identity[0], a]) I nt[Fx, x], x] /; FreeQ[a, x] && EqQ[a^2, 1]
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_))*((c_.) + (d_.)*(x_))^(n_.)*((e_.) + (f_.)*(x_))^(p _.), x_] :> Simp[b*(c + d*x)^(n + 1)*((e + f*x)^(p + 1)/(d*f*(n + p + 2))), x] /; FreeQ[{a, b, c, d, e, f, n, p}, x] && NeQ[n + p + 2, 0] && EqQ[a*d*f *(n + p + 2) - b*(d*e*(n + 1) + c*f*(p + 1)), 0]
Int[Log[(a_) + (b_.)*((F_)^((e_.)*((c_.) + (d_.)*(x_))))^(n_.)], x_Symbol] :> Simp[1/(d*e*n*Log[F]) Subst[Int[Log[a + b*x]/x, x], x, (F^(e*(c + d*x) ))^n], x] /; FreeQ[{F, a, b, c, d, e, n}, x] && GtQ[a, 0]
Int[Log[(c_.)*((d_) + (e_.)*(x_)^(n_.))]/(x_), x_Symbol] :> Simp[-PolyLog[2 , (-c)*e*x^n]/n, x] /; FreeQ[{c, d, e, n}, x] && EqQ[c*d, 1]
Int[csc[(e_.) + (Complex[0, fz_])*(f_.)*(x_)]*((c_.) + (d_.)*(x_))^(m_.), x _Symbol] :> Simp[-2*(c + d*x)^m*(ArcTanh[E^((-I)*e + f*fz*x)]/(f*fz*I)), x] + (-Simp[d*(m/(f*fz*I)) Int[(c + d*x)^(m - 1)*Log[1 - E^((-I)*e + f*fz*x )], x], x] + Simp[d*(m/(f*fz*I)) Int[(c + d*x)^(m - 1)*Log[1 + E^((-I)*e + f*fz*x)], x], x]) /; FreeQ[{c, d, e, f, fz}, x] && IGtQ[m, 0]
Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_.)/((d_) + (e_.)*(x_)^2), x_Symb ol] :> Simp[-(c*d)^(-1) Subst[Int[(a + b*x)^n*Csch[x], x], x, ArcCosh[c*x ]], x] /; FreeQ[{a, b, c, d, e}, x] && EqQ[c^2*d + e, 0] && IGtQ[n, 0]
Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_.)*((f_.)*(x_))^(m_)*((d_) + (e_ .)*(x_)^2)^(p_), x_Symbol] :> Simp[f*(f*x)^(m - 1)*(d + e*x^2)^(p + 1)*((a + b*ArcCosh[c*x])^n/(2*e*(p + 1))), x] + (-Simp[f^2*((m - 1)/(2*e*(p + 1))) Int[(f*x)^(m - 2)*(d + e*x^2)^(p + 1)*(a + b*ArcCosh[c*x])^n, x], x] - S imp[b*f*(n/(2*c*(p + 1)))*Simp[(d + e*x^2)^p/((1 + c*x)^p*(-1 + c*x)^p)] Int[(f*x)^(m - 1)*(1 + c*x)^(p + 1/2)*(-1 + c*x)^(p + 1/2)*(a + b*ArcCosh[c *x])^(n - 1), x], x]) /; FreeQ[{a, b, c, d, e, f}, x] && EqQ[c^2*d + e, 0] && GtQ[n, 0] && LtQ[p, -1] && IGtQ[m, 1]
Time = 0.73 (sec) , antiderivative size = 192, normalized size of antiderivative = 1.55
method | result | size |
derivativedivides | \(\frac {\frac {a \left (-\frac {1}{4 \left (c x +1\right )}-\frac {\ln \left (c x +1\right )}{4}-\frac {1}{4 \left (c x -1\right )}+\frac {\ln \left (c x -1\right )}{4}\right )}{d^{2}}+\frac {b \left (-\frac {c x \,\operatorname {arccosh}\left (c x \right )+\sqrt {c x -1}\, \sqrt {c x +1}}{2 \left (c^{2} x^{2}-1\right )}+\frac {\operatorname {arccosh}\left (c x \right ) \ln \left (1-c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}+\frac {\operatorname {polylog}\left (2, c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}-\frac {\operatorname {arccosh}\left (c x \right ) \ln \left (1+c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}-\frac {\operatorname {polylog}\left (2, -c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}\right )}{d^{2}}}{c^{3}}\) | \(192\) |
default | \(\frac {\frac {a \left (-\frac {1}{4 \left (c x +1\right )}-\frac {\ln \left (c x +1\right )}{4}-\frac {1}{4 \left (c x -1\right )}+\frac {\ln \left (c x -1\right )}{4}\right )}{d^{2}}+\frac {b \left (-\frac {c x \,\operatorname {arccosh}\left (c x \right )+\sqrt {c x -1}\, \sqrt {c x +1}}{2 \left (c^{2} x^{2}-1\right )}+\frac {\operatorname {arccosh}\left (c x \right ) \ln \left (1-c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}+\frac {\operatorname {polylog}\left (2, c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}-\frac {\operatorname {arccosh}\left (c x \right ) \ln \left (1+c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}-\frac {\operatorname {polylog}\left (2, -c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}\right )}{d^{2}}}{c^{3}}\) | \(192\) |
parts | \(\frac {a \left (-\frac {1}{4 c^{3} \left (c x +1\right )}-\frac {\ln \left (c x +1\right )}{4 c^{3}}-\frac {1}{4 c^{3} \left (c x -1\right )}+\frac {\ln \left (c x -1\right )}{4 c^{3}}\right )}{d^{2}}+\frac {b \left (-\frac {c x \,\operatorname {arccosh}\left (c x \right )+\sqrt {c x -1}\, \sqrt {c x +1}}{2 \left (c^{2} x^{2}-1\right )}+\frac {\operatorname {arccosh}\left (c x \right ) \ln \left (1-c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}+\frac {\operatorname {polylog}\left (2, c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}-\frac {\operatorname {arccosh}\left (c x \right ) \ln \left (1+c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}-\frac {\operatorname {polylog}\left (2, -c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{2}\right )}{d^{2} c^{3}}\) | \(203\) |
1/c^3*(a/d^2*(-1/4/(c*x+1)-1/4*ln(c*x+1)-1/4/(c*x-1)+1/4*ln(c*x-1))+b/d^2* (-1/2*(c*x*arccosh(c*x)+(c*x-1)^(1/2)*(c*x+1)^(1/2))/(c^2*x^2-1)+1/2*arcco sh(c*x)*ln(1-c*x-(c*x-1)^(1/2)*(c*x+1)^(1/2))+1/2*polylog(2,c*x+(c*x-1)^(1 /2)*(c*x+1)^(1/2))-1/2*arccosh(c*x)*ln(1+c*x+(c*x-1)^(1/2)*(c*x+1)^(1/2))- 1/2*polylog(2,-c*x-(c*x-1)^(1/2)*(c*x+1)^(1/2))))
\[ \int \frac {x^2 (a+b \text {arccosh}(c x))}{\left (d-c^2 d x^2\right )^2} \, dx=\int { \frac {{\left (b \operatorname {arcosh}\left (c x\right ) + a\right )} x^{2}}{{\left (c^{2} d x^{2} - d\right )}^{2}} \,d x } \]
\[ \int \frac {x^2 (a+b \text {arccosh}(c x))}{\left (d-c^2 d x^2\right )^2} \, dx=\frac {\int \frac {a x^{2}}{c^{4} x^{4} - 2 c^{2} x^{2} + 1}\, dx + \int \frac {b x^{2} \operatorname {acosh}{\left (c x \right )}}{c^{4} x^{4} - 2 c^{2} x^{2} + 1}\, dx}{d^{2}} \]
(Integral(a*x**2/(c**4*x**4 - 2*c**2*x**2 + 1), x) + Integral(b*x**2*acosh (c*x)/(c**4*x**4 - 2*c**2*x**2 + 1), x))/d**2
\[ \int \frac {x^2 (a+b \text {arccosh}(c x))}{\left (d-c^2 d x^2\right )^2} \, dx=\int { \frac {{\left (b \operatorname {arcosh}\left (c x\right ) + a\right )} x^{2}}{{\left (c^{2} d x^{2} - d\right )}^{2}} \,d x } \]
-1/64*(192*c^3*integrate(1/8*x^3*log(c*x - 1)/(c^6*d^2*x^4 - 2*c^4*d^2*x^2 + c^2*d^2), x) + 8*c^2*(2*x/(c^6*d^2*x^2 - c^4*d^2) + log(c*x + 1)/(c^5*d ^2) - log(c*x - 1)/(c^5*d^2)) - 64*c^2*integrate(1/8*x^2*log(c*x - 1)/(c^6 *d^2*x^4 - 2*c^4*d^2*x^2 + c^2*d^2), x) + 3*(c*(2/(c^6*d^2*x - c^5*d^2) - log(c*x + 1)/(c^5*d^2) + log(c*x - 1)/(c^5*d^2)) + 4*log(c*x - 1)/(c^6*d^2 *x^2 - c^4*d^2))*c - 4*((c^2*x^2 - 1)*log(c*x + 1)^2 + 2*(c^2*x^2 - 1)*log (c*x + 1)*log(c*x - 1) - 4*(2*c*x + (c^2*x^2 - 1)*log(c*x + 1) - (c^2*x^2 - 1)*log(c*x - 1))*log(c*x + sqrt(c*x + 1)*sqrt(c*x - 1)))/(c^5*d^2*x^2 - c^3*d^2) + 64*integrate(1/4*(2*c*x + (c^2*x^2 - 1)*log(c*x + 1) - (c^2*x^2 - 1)*log(c*x - 1))/(c^7*d^2*x^5 - 2*c^5*d^2*x^3 + c^3*d^2*x + (c^6*d^2*x^ 4 - 2*c^4*d^2*x^2 + c^2*d^2)*sqrt(c*x + 1)*sqrt(c*x - 1)), x) + 64*integra te(1/8*log(c*x - 1)/(c^6*d^2*x^4 - 2*c^4*d^2*x^2 + c^2*d^2), x))*b - 1/4*a *(2*x/(c^4*d^2*x^2 - c^2*d^2) + log(c*x + 1)/(c^3*d^2) - log(c*x - 1)/(c^3 *d^2))
\[ \int \frac {x^2 (a+b \text {arccosh}(c x))}{\left (d-c^2 d x^2\right )^2} \, dx=\int { \frac {{\left (b \operatorname {arcosh}\left (c x\right ) + a\right )} x^{2}}{{\left (c^{2} d x^{2} - d\right )}^{2}} \,d x } \]
Timed out. \[ \int \frac {x^2 (a+b \text {arccosh}(c x))}{\left (d-c^2 d x^2\right )^2} \, dx=\int \frac {x^2\,\left (a+b\,\mathrm {acosh}\left (c\,x\right )\right )}{{\left (d-c^2\,d\,x^2\right )}^2} \,d x \]