3.1.30 \(\int \frac {x^2 (a+b \cosh ^{-1}(c x))}{d-c^2 d x^2} \, dx\) [30]

Optimal. Leaf size=102 \[ \frac {b \sqrt {-1+c x} \sqrt {1+c x}}{c^3 d}-\frac {x \left (a+b \cosh ^{-1}(c x)\right )}{c^2 d}+\frac {2 \left (a+b \cosh ^{-1}(c x)\right ) \tanh ^{-1}\left (e^{\cosh ^{-1}(c x)}\right )}{c^3 d}+\frac {b \text {PolyLog}\left (2,-e^{\cosh ^{-1}(c x)}\right )}{c^3 d}-\frac {b \text {PolyLog}\left (2,e^{\cosh ^{-1}(c x)}\right )}{c^3 d} \]

[Out]

-x*(a+b*arccosh(c*x))/c^2/d+2*(a+b*arccosh(c*x))*arctanh(c*x+(c*x-1)^(1/2)*(c*x+1)^(1/2))/c^3/d+b*polylog(2,-c
*x-(c*x-1)^(1/2)*(c*x+1)^(1/2))/c^3/d-b*polylog(2,c*x+(c*x-1)^(1/2)*(c*x+1)^(1/2))/c^3/d+b*(c*x-1)^(1/2)*(c*x+
1)^(1/2)/c^3/d

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Rubi [A]
time = 0.10, antiderivative size = 102, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 6, integrand size = 25, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.240, Rules used = {5938, 5903, 4267, 2317, 2438, 75} \begin {gather*} \frac {2 \tanh ^{-1}\left (e^{\cosh ^{-1}(c x)}\right ) \left (a+b \cosh ^{-1}(c x)\right )}{c^3 d}-\frac {x \left (a+b \cosh ^{-1}(c x)\right )}{c^2 d}+\frac {b \text {Li}_2\left (-e^{\cosh ^{-1}(c x)}\right )}{c^3 d}-\frac {b \text {Li}_2\left (e^{\cosh ^{-1}(c x)}\right )}{c^3 d}+\frac {b \sqrt {c x-1} \sqrt {c x+1}}{c^3 d} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(x^2*(a + b*ArcCosh[c*x]))/(d - c^2*d*x^2),x]

[Out]

(b*Sqrt[-1 + c*x]*Sqrt[1 + c*x])/(c^3*d) - (x*(a + b*ArcCosh[c*x]))/(c^2*d) + (2*(a + b*ArcCosh[c*x])*ArcTanh[
E^ArcCosh[c*x]])/(c^3*d) + (b*PolyLog[2, -E^ArcCosh[c*x]])/(c^3*d) - (b*PolyLog[2, E^ArcCosh[c*x]])/(c^3*d)

Rule 75

Int[((a_.) + (b_.)*(x_))*((c_.) + (d_.)*(x_))^(n_.)*((e_.) + (f_.)*(x_))^(p_.), x_Symbol] :> 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]

Rule 2317

Int[Log[(a_) + (b_.)*((F_)^((e_.)*((c_.) + (d_.)*(x_))))^(n_.)], x_Symbol] :> Dist[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]

Rule 2438

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]

Rule 4267

Int[csc[(e_.) + (Complex[0, fz_])*(f_.)*(x_)]*((c_.) + (d_.)*(x_))^(m_.), x_Symbol] :> Simp[-2*(c + d*x)^m*(Ar
cTanh[E^((-I)*e + f*fz*x)]/(f*fz*I)), x] + (-Dist[d*(m/(f*fz*I)), Int[(c + d*x)^(m - 1)*Log[1 - E^((-I)*e + f*
fz*x)], x], x] + Dist[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]

Rule 5903

Int[((a_.) + ArcCosh[(c_.)*(x_)]*(b_.))^(n_.)/((d_) + (e_.)*(x_)^2), x_Symbol] :> Dist[-(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]

Rule 5938

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/(e*(m + 2*p + 1))), x] + (Dist[f^2*((m - 1)/(c^2*(
m + 2*p + 1))), Int[(f*x)^(m - 2)*(d + e*x^2)^p*(a + b*ArcCosh[c*x])^n, x], x] - Dist[b*f*(n/(c*(m + 2*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, p}, x] && EqQ[c^2*d + e, 0] && GtQ[n, 0] && I
GtQ[m, 1] && NeQ[m + 2*p + 1, 0]

Rubi steps

\begin {align*} \int \frac {x^2 \left (a+b \cosh ^{-1}(c x)\right )}{d-c^2 d x^2} \, dx &=-\frac {x \left (a+b \cosh ^{-1}(c x)\right )}{c^2 d}+\frac {\int \frac {a+b \cosh ^{-1}(c x)}{d-c^2 d x^2} \, dx}{c^2}+\frac {b \int \frac {x}{\sqrt {-1+c x} \sqrt {1+c x}} \, dx}{c d}\\ &=\frac {b \sqrt {-1+c x} \sqrt {1+c x}}{c^3 d}-\frac {x \left (a+b \cosh ^{-1}(c x)\right )}{c^2 d}-\frac {\text {Subst}\left (\int (a+b x) \text {csch}(x) \, dx,x,\cosh ^{-1}(c x)\right )}{c^3 d}\\ &=\frac {b \sqrt {-1+c x} \sqrt {1+c x}}{c^3 d}-\frac {x \left (a+b \cosh ^{-1}(c x)\right )}{c^2 d}+\frac {2 \left (a+b \cosh ^{-1}(c x)\right ) \tanh ^{-1}\left (e^{\cosh ^{-1}(c x)}\right )}{c^3 d}+\frac {b \text {Subst}\left (\int \log \left (1-e^x\right ) \, dx,x,\cosh ^{-1}(c x)\right )}{c^3 d}-\frac {b \text {Subst}\left (\int \log \left (1+e^x\right ) \, dx,x,\cosh ^{-1}(c x)\right )}{c^3 d}\\ &=\frac {b \sqrt {-1+c x} \sqrt {1+c x}}{c^3 d}-\frac {x \left (a+b \cosh ^{-1}(c x)\right )}{c^2 d}+\frac {2 \left (a+b \cosh ^{-1}(c x)\right ) \tanh ^{-1}\left (e^{\cosh ^{-1}(c x)}\right )}{c^3 d}+\frac {b \text {Subst}\left (\int \frac {\log (1-x)}{x} \, dx,x,e^{\cosh ^{-1}(c x)}\right )}{c^3 d}-\frac {b \text {Subst}\left (\int \frac {\log (1+x)}{x} \, dx,x,e^{\cosh ^{-1}(c x)}\right )}{c^3 d}\\ &=\frac {b \sqrt {-1+c x} \sqrt {1+c x}}{c^3 d}-\frac {x \left (a+b \cosh ^{-1}(c x)\right )}{c^2 d}+\frac {2 \left (a+b \cosh ^{-1}(c x)\right ) \tanh ^{-1}\left (e^{\cosh ^{-1}(c x)}\right )}{c^3 d}+\frac {b \text {Li}_2\left (-e^{\cosh ^{-1}(c x)}\right )}{c^3 d}-\frac {b \text {Li}_2\left (e^{\cosh ^{-1}(c x)}\right )}{c^3 d}\\ \end {align*}

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Mathematica [A]
time = 0.11, size = 155, normalized size = 1.52 \begin {gather*} \frac {-2 a c x+2 b \sqrt {\frac {-1+c x}{1+c x}}+2 b c x \sqrt {\frac {-1+c x}{1+c x}}-2 b c x \cosh ^{-1}(c x)+b \cosh ^{-1}(c x)^2+2 b \cosh ^{-1}(c x) \log \left (1+e^{-\cosh ^{-1}(c x)}\right )-2 b \cosh ^{-1}(c x) \log \left (1-e^{\cosh ^{-1}(c x)}\right )-a \log (1-c x)+a \log (1+c x)-2 b \text {PolyLog}\left (2,-e^{-\cosh ^{-1}(c x)}\right )-2 b \text {PolyLog}\left (2,e^{\cosh ^{-1}(c x)}\right )}{2 c^3 d} \end {gather*}

Warning: Unable to verify antiderivative.

[In]

Integrate[(x^2*(a + b*ArcCosh[c*x]))/(d - c^2*d*x^2),x]

[Out]

(-2*a*c*x + 2*b*Sqrt[(-1 + c*x)/(1 + c*x)] + 2*b*c*x*Sqrt[(-1 + c*x)/(1 + c*x)] - 2*b*c*x*ArcCosh[c*x] + b*Arc
Cosh[c*x]^2 + 2*b*ArcCosh[c*x]*Log[1 + E^(-ArcCosh[c*x])] - 2*b*ArcCosh[c*x]*Log[1 - E^ArcCosh[c*x]] - a*Log[1
- c*x] + a*Log[1 + c*x] - 2*b*PolyLog[2, -E^(-ArcCosh[c*x])] - 2*b*PolyLog[2, E^ArcCosh[c*x]])/(2*c^3*d)

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Maple [A]
time = 4.25, size = 187, normalized size = 1.83

method	result	size
derivativedivides	\(\frac {-\frac {a c x}{d}-\frac {a \ln \left (c x -1\right )}{2 d}+\frac {a \ln \left (c x +1\right )}{2 d}+\frac {b \,\mathrm {arccosh}\left (c x \right ) \ln \left (1+c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{d}+\frac {b \sqrt {c x -1}\, \sqrt {c x +1}}{d}-\frac {b \,\mathrm {arccosh}\left (c x \right ) \ln \left (1-c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{d}-\frac {b \,\mathrm {arccosh}\left (c x \right ) c x}{d}+\frac {b \polylog \left (2, -c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{d}-\frac {b \polylog \left (2, c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{d}}{c^{3}}\)	\(187\)
default	\(\frac {-\frac {a c x}{d}-\frac {a \ln \left (c x -1\right )}{2 d}+\frac {a \ln \left (c x +1\right )}{2 d}+\frac {b \,\mathrm {arccosh}\left (c x \right ) \ln \left (1+c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{d}+\frac {b \sqrt {c x -1}\, \sqrt {c x +1}}{d}-\frac {b \,\mathrm {arccosh}\left (c x \right ) \ln \left (1-c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{d}-\frac {b \,\mathrm {arccosh}\left (c x \right ) c x}{d}+\frac {b \polylog \left (2, -c x -\sqrt {c x -1}\, \sqrt {c x +1}\right )}{d}-\frac {b \polylog \left (2, c x +\sqrt {c x -1}\, \sqrt {c x +1}\right )}{d}}{c^{3}}\)	\(187\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^2*(a+b*arccosh(c*x))/(-c^2*d*x^2+d),x,method=_RETURNVERBOSE)

[Out]

1/c^3*(-a/d*c*x-1/2*a/d*ln(c*x-1)+1/2*a/d*ln(c*x+1)+b/d*arccosh(c*x)*ln(1+c*x+(c*x-1)^(1/2)*(c*x+1)^(1/2))+b/d
*(c*x-1)^(1/2)*(c*x+1)^(1/2)-b/d*arccosh(c*x)*ln(1-c*x-(c*x-1)^(1/2)*(c*x+1)^(1/2))-b/d*arccosh(c*x)*c*x+b/d*p
olylog(2,-c*x-(c*x-1)^(1/2)*(c*x+1)^(1/2))-b/d*polylog(2,c*x+(c*x-1)^(1/2)*(c*x+1)^(1/2)))

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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(a+b*arccosh(c*x))/(-c^2*d*x^2+d),x, algorithm="maxima")

[Out]

1/8*(4*c^2*(2*x/(c^4*d) - log(c*x + 1)/(c^5*d) + log(c*x - 1)/(c^5*d)) + 24*c*integrate(1/4*x*log(c*x - 1)/(c^
4*d*x^2 - c^2*d), x) - (4*(2*c*x - log(c*x + 1) + log(c*x - 1))*log(c*x + sqrt(c*x + 1)*sqrt(c*x - 1)) + log(c
*x + 1)^2 + 2*log(c*x + 1)*log(c*x - 1))/(c^3*d) + 8*integrate(-1/2*(2*c*x - log(c*x + 1) + log(c*x - 1))/(c^5
*d*x^3 - c^3*d*x + (c^4*d*x^2 - c^2*d)*sqrt(c*x + 1)*sqrt(c*x - 1)), x) - 8*integrate(1/4*log(c*x - 1)/(c^4*d*
x^2 - c^2*d), x))*b - 1/2*a*(2*x/(c^2*d) - log(c*x + 1)/(c^3*d) + log(c*x - 1)/(c^3*d))

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Fricas [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(a+b*arccosh(c*x))/(-c^2*d*x^2+d),x, algorithm="fricas")

[Out]

integral(-(b*x^2*arccosh(c*x) + a*x^2)/(c^2*d*x^2 - d), x)

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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} - \frac {\int \frac {a x^{2}}{c^{2} x^{2} - 1}\, dx + \int \frac {b x^{2} \operatorname {acosh}{\left (c x \right )}}{c^{2} x^{2} - 1}\, dx}{d} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**2*(a+b*acosh(c*x))/(-c**2*d*x**2+d),x)

[Out]

-(Integral(a*x**2/(c**2*x**2 - 1), x) + Integral(b*x**2*acosh(c*x)/(c**2*x**2 - 1), x))/d

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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(a+b*arccosh(c*x))/(-c^2*d*x^2+d),x, algorithm="giac")

[Out]

integrate(-(b*arccosh(c*x) + a)*x^2/(c^2*d*x^2 - d), x)

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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {x^2\,\left (a+b\,\mathrm {acosh}\left (c\,x\right )\right )}{d-c^2\,d\,x^2} \,d x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((x^2*(a + b*acosh(c*x)))/(d - c^2*d*x^2),x)

[Out]

int((x^2*(a + b*acosh(c*x)))/(d - c^2*d*x^2), x)

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