3.273 \(\int \frac {\sinh ^{-1}(a+b x)^2}{\sqrt {1+a^2+2 a b x+b^2 x^2}} \, dx\)

Optimal. Leaf size=15 \[ \frac {\sinh ^{-1}(a+b x)^3}{3 b} \]

[Out]

1/3*arcsinh(b*x+a)^3/b

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Rubi [A]  time = 0.07, antiderivative size = 15, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 30, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.067, Rules used = {5867, 5675} \[ \frac {\sinh ^{-1}(a+b x)^3}{3 b} \]

Antiderivative was successfully verified.

[In]

Int[ArcSinh[a + b*x]^2/Sqrt[1 + a^2 + 2*a*b*x + b^2*x^2],x]

[Out]

ArcSinh[a + b*x]^3/(3*b)

Rule 5675

Int[((a_.) + ArcSinh[(c_.)*(x_)]*(b_.))^(n_.)/Sqrt[(d_) + (e_.)*(x_)^2], x_Symbol] :> Simp[(a + b*ArcSinh[c*x]
)^(n + 1)/(b*c*Sqrt[d]*(n + 1)), x] /; FreeQ[{a, b, c, d, e, n}, x] && EqQ[e, c^2*d] && GtQ[d, 0] && NeQ[n, -1
]

Rule 5867

Int[((a_.) + ArcSinh[(c_) + (d_.)*(x_)]*(b_.))^(n_.)*((A_.) + (B_.)*(x_) + (C_.)*(x_)^2)^(p_.), x_Symbol] :> D
ist[1/d, Subst[Int[(C/d^2 + (C*x^2)/d^2)^p*(a + b*ArcSinh[x])^n, x], x, c + d*x], x] /; FreeQ[{a, b, c, d, A,
B, C, n, p}, x] && EqQ[B*(1 + c^2) - 2*A*c*d, 0] && EqQ[2*c*C - B*d, 0]

Rubi steps

\begin {align*} \int \frac {\sinh ^{-1}(a+b x)^2}{\sqrt {1+a^2+2 a b x+b^2 x^2}} \, dx &=\frac {\operatorname {Subst}\left (\int \frac {\sinh ^{-1}(x)^2}{\sqrt {1+x^2}} \, dx,x,a+b x\right )}{b}\\ &=\frac {\sinh ^{-1}(a+b x)^3}{3 b}\\ \end {align*}

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Mathematica [A]  time = 0.02, size = 15, normalized size = 1.00 \[ \frac {\sinh ^{-1}(a+b x)^3}{3 b} \]

Antiderivative was successfully verified.

[In]

Integrate[ArcSinh[a + b*x]^2/Sqrt[1 + a^2 + 2*a*b*x + b^2*x^2],x]

[Out]

ArcSinh[a + b*x]^3/(3*b)

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fricas [B]  time = 0.83, size = 32, normalized size = 2.13 \[ \frac {\log \left (b x + a + \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}\right )^{3}}{3 \, b} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(arcsinh(b*x+a)^2/(b^2*x^2+2*a*b*x+a^2+1)^(1/2),x, algorithm="fricas")

[Out]

1/3*log(b*x + a + sqrt(b^2*x^2 + 2*a*b*x + a^2 + 1))^3/b

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {\operatorname {arsinh}\left (b x + a\right )^{2}}{\sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(arcsinh(b*x+a)^2/(b^2*x^2+2*a*b*x+a^2+1)^(1/2),x, algorithm="giac")

[Out]

integrate(arcsinh(b*x + a)^2/sqrt(b^2*x^2 + 2*a*b*x + a^2 + 1), x)

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maple [A]  time = 0.07, size = 14, normalized size = 0.93 \[ \frac {\arcsinh \left (b x +a \right )^{3}}{3 b} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(arcsinh(b*x+a)^2/(b^2*x^2+2*a*b*x+a^2+1)^(1/2),x)

[Out]

1/3*arcsinh(b*x+a)^3/b

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maxima [B]  time = 0.78, size = 132, normalized size = 8.80 \[ \frac {\operatorname {arsinh}\left (b x + a\right )^{2} \operatorname {arsinh}\left (\frac {2 \, {\left (b^{2} x + a b\right )}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}}}\right )}{b} - \frac {\operatorname {arsinh}\left (b x + a\right ) \operatorname {arsinh}\left (\frac {2 \, {\left (b^{2} x + a b\right )}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}}}\right )^{2}}{b} + \frac {\operatorname {arsinh}\left (\frac {2 \, {\left (b^{2} x + a b\right )}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}}}\right )^{3}}{3 \, b} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(arcsinh(b*x+a)^2/(b^2*x^2+2*a*b*x+a^2+1)^(1/2),x, algorithm="maxima")

[Out]

arcsinh(b*x + a)^2*arcsinh(2*(b^2*x + a*b)/sqrt(-4*a^2*b^2 + 4*(a^2 + 1)*b^2))/b - arcsinh(b*x + a)*arcsinh(2*
(b^2*x + a*b)/sqrt(-4*a^2*b^2 + 4*(a^2 + 1)*b^2))^2/b + 1/3*arcsinh(2*(b^2*x + a*b)/sqrt(-4*a^2*b^2 + 4*(a^2 +
1)*b^2))^3/b

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mupad [B]  time = 0.19, size = 13, normalized size = 0.87 \[ \frac {{\mathrm {asinh}\left (a+b\,x\right )}^3}{3\,b} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(asinh(a + b*x)^2/(a^2 + b^2*x^2 + 2*a*b*x + 1)^(1/2),x)

[Out]

asinh(a + b*x)^3/(3*b)

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sympy [A]  time = 0.84, size = 26, normalized size = 1.73 \[ \begin {cases} \frac {\operatorname {asinh}^{3}{\left (a + b x \right )}}{3 b} & \text {for}\: b \neq 0 \\\frac {x \operatorname {asinh}^{2}{\relax (a )}}{\sqrt {a^{2} + 1}} & \text {otherwise} \end {cases} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(asinh(b*x+a)**2/(b**2*x**2+2*a*b*x+a**2+1)**(1/2),x)

[Out]

Piecewise((asinh(a + b*x)**3/(3*b), Ne(b, 0)), (x*asinh(a)**2/sqrt(a**2 + 1), True))

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