3.1.82 \(\int \frac {1}{x^4 \sqrt [4]{1+x^4}} \, dx\)

Optimal. Leaf size=16 \[ -\frac {\left (x^4+1\right )^{3/4}}{3 x^3} \]

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Rubi [A]  time = 0.00, antiderivative size = 16, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {264} \begin {gather*} -\frac {\left (x^4+1\right )^{3/4}}{3 x^3} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[1/(x^4*(1 + x^4)^(1/4)),x]

[Out]

-1/3*(1 + x^4)^(3/4)/x^3

Rule 264

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

Rubi steps

\begin {align*} \int \frac {1}{x^4 \sqrt [4]{1+x^4}} \, dx &=-\frac {\left (1+x^4\right )^{3/4}}{3 x^3}\\ \end {align*}

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Mathematica [A]  time = 0.00, size = 16, normalized size = 1.00 \begin {gather*} -\frac {\left (x^4+1\right )^{3/4}}{3 x^3} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[1/(x^4*(1 + x^4)^(1/4)),x]

[Out]

-1/3*(1 + x^4)^(3/4)/x^3

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IntegrateAlgebraic [A]  time = 0.12, size = 16, normalized size = 1.00 \begin {gather*} -\frac {\left (1+x^4\right )^{3/4}}{3 x^3} \end {gather*}

Antiderivative was successfully verified.

[In]

IntegrateAlgebraic[1/(x^4*(1 + x^4)^(1/4)),x]

[Out]

-1/3*(1 + x^4)^(3/4)/x^3

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fricas [A]  time = 0.43, size = 12, normalized size = 0.75 \begin {gather*} -\frac {{\left (x^{4} + 1\right )}^{\frac {3}{4}}}{3 \, x^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/x^4/(x^4+1)^(1/4),x, algorithm="fricas")

[Out]

-1/3*(x^4 + 1)^(3/4)/x^3

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{{\left (x^{4} + 1\right )}^{\frac {1}{4}} x^{4}}\,{d x} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/x^4/(x^4+1)^(1/4),x, algorithm="giac")

[Out]

integrate(1/((x^4 + 1)^(1/4)*x^4), x)

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maple [A]  time = 0.05, size = 13, normalized size = 0.81

method	result	size
gosper	\(-\frac {\left (x^{4}+1\right )^{\frac {3}{4}}}{3 x^{3}}\)	\(13\)
trager	\(-\frac {\left (x^{4}+1\right )^{\frac {3}{4}}}{3 x^{3}}\)	\(13\)
meijerg	\(-\frac {\left (x^{4}+1\right )^{\frac {3}{4}}}{3 x^{3}}\)	\(13\)
risch	\(-\frac {\left (x^{4}+1\right )^{\frac {3}{4}}}{3 x^{3}}\)	\(13\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/x^4/(x^4+1)^(1/4),x,method=_RETURNVERBOSE)

[Out]

-1/3*(x^4+1)^(3/4)/x^3

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maxima [A]  time = 0.42, size = 12, normalized size = 0.75 \begin {gather*} -\frac {{\left (x^{4} + 1\right )}^{\frac {3}{4}}}{3 \, x^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/x^4/(x^4+1)^(1/4),x, algorithm="maxima")

[Out]

-1/3*(x^4 + 1)^(3/4)/x^3

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mupad [B]  time = 0.16, size = 12, normalized size = 0.75 \begin {gather*} -\frac {{\left (x^4+1\right )}^{3/4}}{3\,x^3} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(x^4*(x^4 + 1)^(1/4)),x)

[Out]

-(x^4 + 1)^(3/4)/(3*x^3)

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sympy [A]  time = 0.58, size = 22, normalized size = 1.38 \begin {gather*} \frac {\left (1 + \frac {1}{x^{4}}\right )^{\frac {3}{4}} \Gamma \left (- \frac {3}{4}\right )}{4 \Gamma \left (\frac {1}{4}\right )} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/x**4/(x**4+1)**(1/4),x)

[Out]

(1 + x**(-4))**(3/4)*gamma(-3/4)/(4*gamma(1/4))

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