3.1.75 \(\int \frac {4+x^3}{x^4 \sqrt [4]{1+x^3}} \, dx\)

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

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Rubi [A]  time = 0.01, antiderivative size = 16, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 18, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {446, 74} \begin {gather*} -\frac {4 \left (x^3+1\right )^{3/4}}{3 x^3} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(4 + x^3)/(x^4*(1 + x^3)^(1/4)),x]

[Out]

(-4*(1 + x^3)^(3/4))/(3*x^3)

Rule 74

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 446

Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_.)*((c_) + (d_.)*(x_)^(n_))^(q_.), x_Symbol] :> Dist[1/n, Subst[Int
[x^(Simplify[(m + 1)/n] - 1)*(a + b*x)^p*(c + d*x)^q, x], x, x^n], x] /; FreeQ[{a, b, c, d, m, n, p, q}, x] &&
NeQ[b*c - a*d, 0] && IntegerQ[Simplify[(m + 1)/n]]

Rubi steps

\begin {align*} \int \frac {4+x^3}{x^4 \sqrt [4]{1+x^3}} \, dx &=\frac {1}{3} \operatorname {Subst}\left (\int \frac {4+x}{x^2 \sqrt [4]{1+x}} \, dx,x,x^3\right )\\ &=-\frac {4 \left (1+x^3\right )^{3/4}}{3 x^3}\\ \end {align*}

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Mathematica [A]  time = 0.01, size = 16, normalized size = 1.00 \begin {gather*} -\frac {4 \left (x^3+1\right )^{3/4}}{3 x^3} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(4 + x^3)/(x^4*(1 + x^3)^(1/4)),x]

[Out]

(-4*(1 + x^3)^(3/4))/(3*x^3)

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IntegrateAlgebraic [A]  time = 0.04, size = 16, normalized size = 1.00 \begin {gather*} -\frac {4 \left (x^3+1\right )^{3/4}}{3 x^3} \end {gather*}

Antiderivative was successfully verified.

[In]

IntegrateAlgebraic[(4 + x^3)/(x^4*(1 + x^3)^(1/4)),x]

[Out]

(-4*(1 + x^3)^(3/4))/(3*x^3)

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fricas [A]  time = 0.40, size = 12, normalized size = 0.75 \begin {gather*} -\frac {4 \, {\left (x^{3} + 1\right )}^{\frac {3}{4}}}{3 \, x^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3+4)/x^4/(x^3+1)^(1/4),x, algorithm="fricas")

[Out]

-4/3*(x^3 + 1)^(3/4)/x^3

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giac [A]  time = 0.31, size = 12, normalized size = 0.75 \begin {gather*} -\frac {4 \, {\left (x^{3} + 1\right )}^{\frac {3}{4}}}{3 \, x^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3+4)/x^4/(x^3+1)^(1/4),x, algorithm="giac")

[Out]

-4/3*(x^3 + 1)^(3/4)/x^3

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maple [A]  time = 0.00, size = 24, normalized size = 1.50 \begin {gather*} -\frac {4 \left (1+x \right ) \left (x^{2}-x +1\right )}{3 x^{3} \left (x^{3}+1\right )^{\frac {1}{4}}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((x^3+4)/x^4/(x^3+1)^(1/4),x)

[Out]

-4/3/x^3*(1+x)*(x^2-x+1)/(x^3+1)^(1/4)

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maxima [A]  time = 0.56, size = 12, normalized size = 0.75 \begin {gather*} -\frac {4 \, {\left (x^{3} + 1\right )}^{\frac {3}{4}}}{3 \, x^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3+4)/x^4/(x^3+1)^(1/4),x, algorithm="maxima")

[Out]

-4/3*(x^3 + 1)^(3/4)/x^3

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mupad [B]  time = 0.15, size = 12, normalized size = 0.75 \begin {gather*} -\frac {4\,{\left (x^3+1\right )}^{3/4}}{3\,x^3} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((x^3 + 4)/(x^4*(x^3 + 1)^(1/4)),x)

[Out]

-(4*(x^3 + 1)^(3/4))/(3*x^3)

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sympy [B]  time = 46.79, size = 49, normalized size = 3.06 \begin {gather*} \frac {1}{3 \left (1 + \frac {1}{\sqrt [4]{x^{3} + 1}}\right )} - \frac {2}{3 \left (1 + \frac {1}{\sqrt {x^{3} + 1}}\right ) \sqrt [4]{x^{3} + 1}} + \frac {1}{3 \left (-1 + \frac {1}{\sqrt [4]{x^{3} + 1}}\right )} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x**3+4)/x**4/(x**3+1)**(1/4),x)

[Out]

1/(3*(1 + (x**3 + 1)**(-1/4))) - 2/(3*(1 + 1/sqrt(x**3 + 1))*(x**3 + 1)**(1/4)) + 1/(3*(-1 + (x**3 + 1)**(-1/4
)))

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