3.560 \(\int \sqrt {\sinh (x) \tanh (x)} \, dx\)

Optimal. Leaf size=13 \[ 2 \coth (x) \sqrt {\sinh (x) \tanh (x)} \]

[Out]

2*coth(x)*(sinh(x)*tanh(x))^(1/2)

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Rubi [A]  time = 0.05, antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {4398, 4400, 2589} \[ 2 \coth (x) \sqrt {\sinh (x) \tanh (x)} \]

Antiderivative was successfully verified.

[In]

Int[Sqrt[Sinh[x]*Tanh[x]],x]

[Out]

2*Coth[x]*Sqrt[Sinh[x]*Tanh[x]]

Rule 2589

Int[((a_.)*sin[(e_.) + (f_.)*(x_)])^(m_)*((b_.)*tan[(e_.) + (f_.)*(x_)])^(n_), x_Symbol] :> -Simp[(b*(a*Sin[e
+ f*x])^m*(b*Tan[e + f*x])^(n - 1))/(f*m), x] /; FreeQ[{a, b, e, f, m, n}, x] && EqQ[m + n - 1, 0]

Rule 4398

Int[(u_.)*((a_)*(v_))^(p_), x_Symbol] :> With[{uu = ActivateTrig[u], vv = ActivateTrig[v]}, Dist[(a^IntPart[p]
*(a*vv)^FracPart[p])/vv^FracPart[p], Int[uu*vv^p, x], x]] /; FreeQ[{a, p}, x] &&  !IntegerQ[p] &&  !InertTrigF
reeQ[v]

Rule 4400

Int[(u_.)*((v_)^(m_.)*(w_)^(n_.))^(p_), x_Symbol] :> With[{uu = ActivateTrig[u], vv = ActivateTrig[v], ww = Ac
tivateTrig[w]}, Dist[(vv^m*ww^n)^FracPart[p]/(vv^(m*FracPart[p])*ww^(n*FracPart[p])), Int[uu*vv^(m*p)*ww^(n*p)
, x], x]] /; FreeQ[{m, n, p}, x] &&  !IntegerQ[p] && ( !InertTrigFreeQ[v] ||  !InertTrigFreeQ[w])

Rubi steps

\begin {align*} \int \sqrt {\sinh (x) \tanh (x)} \, dx &=\frac {\sqrt {\sinh (x) \tanh (x)} \int \sqrt {-\sinh (x) \tanh (x)} \, dx}{\sqrt {-\sinh (x) \tanh (x)}}\\ &=\frac {\sqrt {\sinh (x) \tanh (x)} \int \sqrt {i \sinh (x)} \sqrt {i \tanh (x)} \, dx}{\sqrt {i \sinh (x)} \sqrt {i \tanh (x)}}\\ &=2 \coth (x) \sqrt {\sinh (x) \tanh (x)}\\ \end {align*}

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Mathematica [A]  time = 0.07, size = 13, normalized size = 1.00 \[ 2 \coth (x) \sqrt {\sinh (x) \tanh (x)} \]

Antiderivative was successfully verified.

[In]

Integrate[Sqrt[Sinh[x]*Tanh[x]],x]

[Out]

2*Coth[x]*Sqrt[Sinh[x]*Tanh[x]]

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fricas [B]  time = 0.44, size = 53, normalized size = 4.08 \[ \frac {2 \, \sqrt {\frac {1}{2}} {\left (\cosh \relax (x)^{2} + 2 \, \cosh \relax (x) \sinh \relax (x) + \sinh \relax (x)^{2} + 1\right )}}{\sqrt {\cosh \relax (x)^{3} + 3 \, \cosh \relax (x) \sinh \relax (x)^{2} + \sinh \relax (x)^{3} + {\left (3 \, \cosh \relax (x)^{2} + 1\right )} \sinh \relax (x) + \cosh \relax (x)}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((sinh(x)*tanh(x))^(1/2),x, algorithm="fricas")

[Out]

2*sqrt(1/2)*(cosh(x)^2 + 2*cosh(x)*sinh(x) + sinh(x)^2 + 1)/sqrt(cosh(x)^3 + 3*cosh(x)*sinh(x)^2 + sinh(x)^3 +
(3*cosh(x)^2 + 1)*sinh(x) + cosh(x))

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \sqrt {\sinh \relax (x) \tanh \relax (x)}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((sinh(x)*tanh(x))^(1/2),x, algorithm="giac")

[Out]

integrate(sqrt(sinh(x)*tanh(x)), x)

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maple [B]  time = 0.52, size = 42, normalized size = 3.23 \[ \frac {\sqrt {2}\, \sqrt {\frac {\left ({\mathrm e}^{2 x}-1\right )^{2} {\mathrm e}^{-x}}{1+{\mathrm e}^{2 x}}}\, \left (1+{\mathrm e}^{2 x}\right )}{{\mathrm e}^{2 x}-1} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((sinh(x)*tanh(x))^(1/2),x)

[Out]

2^(1/2)*((exp(2*x)-1)^2*exp(-x)/(1+exp(2*x)))^(1/2)/(exp(2*x)-1)*(1+exp(2*x))

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maxima [B]  time = 0.77, size = 35, normalized size = 2.69 \[ -\frac {\sqrt {2} e^{\left (\frac {1}{2} \, x\right )}}{\sqrt {e^{\left (-2 \, x\right )} + 1}} - \frac {\sqrt {2} e^{\left (-\frac {3}{2} \, x\right )}}{\sqrt {e^{\left (-2 \, x\right )} + 1}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((sinh(x)*tanh(x))^(1/2),x, algorithm="maxima")

[Out]

-sqrt(2)*e^(1/2*x)/sqrt(e^(-2*x) + 1) - sqrt(2)*e^(-3/2*x)/sqrt(e^(-2*x) + 1)

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mupad [B]  time = 1.62, size = 35, normalized size = 2.69 \[ 2\,\mathrm {coth}\relax (x)\,\sqrt {-\left (\frac {{\mathrm {e}}^{-x}}{2}-\frac {{\mathrm {e}}^x}{2}\right )\,\left ({\mathrm {e}}^{2\,x}-1\right )}\,\sqrt {\frac {1}{{\mathrm {e}}^{2\,x}+1}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((sinh(x)*tanh(x))^(1/2),x)

[Out]

2*coth(x)*(-(exp(-x)/2 - exp(x)/2)*(exp(2*x) - 1))^(1/2)*(1/(exp(2*x) + 1))^(1/2)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \sqrt {\sinh {\relax (x )} \tanh {\relax (x )}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((sinh(x)*tanh(x))**(1/2),x)

[Out]

Integral(sqrt(sinh(x)*tanh(x)), x)

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