3.14 \(\int \frac {1}{\sqrt {1-\coth ^2(x)}} \, dx\)

Optimal. Leaf size=13 \[ \frac {\coth (x)}{\sqrt {-\text {csch}^2(x)}} \]

[Out]

coth(x)/(-csch(x)^2)^(1/2)

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Rubi [A]  time = 0.02, antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 12, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {3657, 4122, 191} \[ \frac {\coth (x)}{\sqrt {-\text {csch}^2(x)}} \]

Antiderivative was successfully verified.

[In]

Int[1/Sqrt[1 - Coth[x]^2],x]

[Out]

Coth[x]/Sqrt[-Csch[x]^2]

Rule 191

Int[((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(x*(a + b*x^n)^(p + 1))/a, x] /; FreeQ[{a, b, n, p}, x] &
& EqQ[1/n + p + 1, 0]

Rule 3657

Int[(u_.)*((a_) + (b_.)*tan[(e_.) + (f_.)*(x_)]^2)^(p_), x_Symbol] :> Int[ActivateTrig[u*(a*sec[e + f*x]^2)^p]
, x] /; FreeQ[{a, b, e, f, p}, x] && EqQ[a, b]

Rule 4122

Int[((b_.)*sec[(e_.) + (f_.)*(x_)]^2)^(p_), x_Symbol] :> With[{ff = FreeFactors[Tan[e + f*x], x]}, Dist[(b*ff)
/f, Subst[Int[(b + b*ff^2*x^2)^(p - 1), x], x, Tan[e + f*x]/ff], x]] /; FreeQ[{b, e, f, p}, x] &&  !IntegerQ[p
]

Rubi steps

\begin {align*} \int \frac {1}{\sqrt {1-\coth ^2(x)}} \, dx &=\int \frac {1}{\sqrt {-\text {csch}^2(x)}} \, dx\\ &=\operatorname {Subst}\left (\int \frac {1}{\left (1-x^2\right )^{3/2}} \, dx,x,\coth (x)\right )\\ &=\frac {\coth (x)}{\sqrt {-\text {csch}^2(x)}}\\ \end {align*}

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Mathematica [A]  time = 0.01, size = 13, normalized size = 1.00 \[ \frac {\coth (x)}{\sqrt {-\text {csch}^2(x)}} \]

Antiderivative was successfully verified.

[In]

Integrate[1/Sqrt[1 - Coth[x]^2],x]

[Out]

Coth[x]/Sqrt[-Csch[x]^2]

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fricas [A]  time = 0.41, size = 1, normalized size = 0.08 \[ 0 \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(1-coth(x)^2)^(1/2),x, algorithm="fricas")

[Out]

0

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giac [C]  time = 0.12, size = 24, normalized size = 1.85 \[ -\frac {-i \, e^{\left (-x\right )} - i \, e^{x}}{2 \, \mathrm {sgn}\left (-e^{\left (2 \, x\right )} + 1\right )} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(1-coth(x)^2)^(1/2),x, algorithm="giac")

[Out]

-1/2*(-I*e^(-x) - I*e^x)/sgn(-e^(2*x) + 1)

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maple [A]  time = 0.06, size = 14, normalized size = 1.08 \[ \frac {\coth \relax (x )}{\sqrt {1-\left (\coth ^{2}\relax (x )\right )}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(1-coth(x)^2)^(1/2),x)

[Out]

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

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maxima [C]  time = 0.42, size = 11, normalized size = 0.85 \[ \frac {1}{2} i \, e^{\left (-x\right )} + \frac {1}{2} i \, e^{x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(1-coth(x)^2)^(1/2),x, algorithm="maxima")

[Out]

1/2*I*e^(-x) + 1/2*I*e^x

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mupad [B]  time = 1.34, size = 18, normalized size = 1.38 \[ -\mathrm {cosh}\relax (x)\,\mathrm {sinh}\relax (x)\,\sqrt {-\frac {1}{{\mathrm {cosh}\relax (x)}^2-1}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(1 - coth(x)^2)^(1/2),x)

[Out]

-cosh(x)*sinh(x)*(-1/(cosh(x)^2 - 1))^(1/2)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {1}{\sqrt {1 - \coth ^{2}{\relax (x )}}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(1-coth(x)**2)**(1/2),x)

[Out]

Integral(1/sqrt(1 - coth(x)**2), x)

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