3.25.1 \(\int (a+b (c x^n)^{\frac {1}{n}}) \, dx\)

Optimal. Leaf size=19 \[ a x+\frac {1}{2} b x \left (c x^n\right )^{\frac {1}{n}} \]

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Rubi [A]  time = 0.01, antiderivative size = 19, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {15, 30} \begin {gather*} a x+\frac {1}{2} b x \left (c x^n\right )^{\frac {1}{n}} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[a + b*(c*x^n)^n^(-1),x]

[Out]

a*x + (b*x*(c*x^n)^n^(-1))/2

Rule 15

Int[(u_.)*((a_.)*(x_)^(n_))^(m_), x_Symbol] :> Dist[(a^IntPart[m]*(a*x^n)^FracPart[m])/x^(n*FracPart[m]), Int[
u*x^(m*n), x], x] /; FreeQ[{a, m, n}, x] &&  !IntegerQ[m]

Rule 30

Int[(x_)^(m_.), x_Symbol] :> Simp[x^(m + 1)/(m + 1), x] /; FreeQ[m, x] && NeQ[m, -1]

Rubi steps

\begin {align*} \int \left (a+b \left (c x^n\right )^{\frac {1}{n}}\right ) \, dx &=a x+b \int \left (c x^n\right )^{\frac {1}{n}} \, dx\\ &=a x+\frac {\left (b \left (c x^n\right )^{\frac {1}{n}}\right ) \int x \, dx}{x}\\ &=a x+\frac {1}{2} b x \left (c x^n\right )^{\frac {1}{n}}\\ \end {align*}

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Mathematica [A]  time = 0.01, size = 19, normalized size = 1.00 \begin {gather*} a x+\frac {1}{2} b x \left (c x^n\right )^{\frac {1}{n}} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[a + b*(c*x^n)^n^(-1),x]

[Out]

a*x + (b*x*(c*x^n)^n^(-1))/2

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IntegrateAlgebraic [A]  time = 0.15, size = 19, normalized size = 1.00 \begin {gather*} a x+\frac {1}{2} b x \left (c x^n\right )^{\frac {1}{n}} \end {gather*}

Antiderivative was successfully verified.

[In]

IntegrateAlgebraic[a + b*(c*x^n)^n^(-1),x]

[Out]

a*x + (b*x*(c*x^n)^n^(-1))/2

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fricas [A]  time = 1.46, size = 15, normalized size = 0.79 \begin {gather*} \frac {1}{2} \, b c^{\left (\frac {1}{n}\right )} x^{2} + a x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

1/2*b*c^(1/n)*x^2 + a*x

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giac [A]  time = 0.16, size = 15, normalized size = 0.79 \begin {gather*} \frac {1}{2} \, b c^{\left (\frac {1}{n}\right )} x^{2} + a x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

1/2*b*c^(1/n)*x^2 + a*x

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maple [A]  time = 0.02, size = 22, normalized size = 1.16 \begin {gather*} \frac {b x \,{\mathrm e}^{\frac {\ln \left (c \,{\mathrm e}^{n \ln \relax (x )}\right )}{n}}}{2}+a x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(a+b*(c*x^n)^(1/n),x)

[Out]

a*x+1/2*x*b*exp(1/n*ln(c*exp(n*ln(x))))

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

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

b*c^(1/n)*integrate((x^n)^(1/n), x) + a*x

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mupad [B]  time = 1.20, size = 17, normalized size = 0.89 \begin {gather*} a\,x+\frac {b\,x\,{\left (c\,x^n\right )}^{1/n}}{2} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(a + b*(c*x^n)^(1/n),x)

[Out]

a*x + (b*x*(c*x^n)^(1/n))/2

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sympy [A]  time = 0.24, size = 19, normalized size = 1.00 \begin {gather*} a x + \frac {b c^{\frac {1}{n}} x \left (x^{n}\right )^{\frac {1}{n}}}{2} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(a+b*(c*x**n)**(1/n),x)

[Out]

a*x + b*c**(1/n)*x*(x**n)**(1/n)/2

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