3.47 \(\int \frac{d+e x^n}{a-c x^{2 n}} \, dx\)

Optimal. Leaf size=81 \[ \frac{d x \, _2F_1\left (1,\frac{1}{2 n};\frac{1}{2} \left (2+\frac{1}{n}\right );\frac{c x^{2 n}}{a}\right )}{a}+\frac{e x^{n+1} \, _2F_1\left (1,\frac{n+1}{2 n};\frac{1}{2} \left (3+\frac{1}{n}\right );\frac{c x^{2 n}}{a}\right )}{a (n+1)} \]

[Out]

(d*x*Hypergeometric2F1[1, 1/(2*n), (2 + n^(-1))/2, (c*x^(2*n))/a])/a + (e*x^(1 + n)*Hypergeometric2F1[1, (1 +
n)/(2*n), (3 + n^(-1))/2, (c*x^(2*n))/a])/(a*(1 + n))

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Rubi [A]  time = 0.0283905, antiderivative size = 81, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 20, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.15, Rules used = {1418, 245, 364} \[ \frac{d x \, _2F_1\left (1,\frac{1}{2 n};\frac{1}{2} \left (2+\frac{1}{n}\right );\frac{c x^{2 n}}{a}\right )}{a}+\frac{e x^{n+1} \, _2F_1\left (1,\frac{n+1}{2 n};\frac{1}{2} \left (3+\frac{1}{n}\right );\frac{c x^{2 n}}{a}\right )}{a (n+1)} \]

Antiderivative was successfully verified.

[In]

Int[(d + e*x^n)/(a - c*x^(2*n)),x]

[Out]

(d*x*Hypergeometric2F1[1, 1/(2*n), (2 + n^(-1))/2, (c*x^(2*n))/a])/a + (e*x^(1 + n)*Hypergeometric2F1[1, (1 +
n)/(2*n), (3 + n^(-1))/2, (c*x^(2*n))/a])/(a*(1 + n))

Rule 1418

Int[((d_) + (e_.)*(x_)^(n_))/((a_) + (c_.)*(x_)^(n2_)), x_Symbol] :> Dist[d, Int[1/(a + c*x^(2*n)), x], x] + D
ist[e, Int[x^n/(a + c*x^(2*n)), x], x] /; FreeQ[{a, c, d, e, n}, x] && EqQ[n2, 2*n] && NeQ[c*d^2 + a*e^2, 0] &
& (PosQ[a*c] ||  !IntegerQ[n])

Rule 245

Int[((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[a^p*x*Hypergeometric2F1[-p, 1/n, 1/n + 1, -((b*x^n)/a)],
x] /; FreeQ[{a, b, n, p}, x] &&  !IGtQ[p, 0] &&  !IntegerQ[1/n] &&  !ILtQ[Simplify[1/n + p], 0] && (IntegerQ[p
] || GtQ[a, 0])

Rule 364

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(a^p*(c*x)^(m + 1)*Hypergeometric2F1[-
p, (m + 1)/n, (m + 1)/n + 1, -((b*x^n)/a)])/(c*(m + 1)), x] /; FreeQ[{a, b, c, m, n, p}, x] &&  !IGtQ[p, 0] &&
(ILtQ[p, 0] || GtQ[a, 0])

Rubi steps

\begin{align*} \int \frac{d+e x^n}{a-c x^{2 n}} \, dx &=d \int \frac{1}{a-c x^{2 n}} \, dx+e \int \frac{x^n}{a-c x^{2 n}} \, dx\\ &=\frac{d x \, _2F_1\left (1,\frac{1}{2 n};\frac{1}{2} \left (2+\frac{1}{n}\right );\frac{c x^{2 n}}{a}\right )}{a}+\frac{e x^{1+n} \, _2F_1\left (1,\frac{1+n}{2 n};\frac{1}{2} \left (3+\frac{1}{n}\right );\frac{c x^{2 n}}{a}\right )}{a (1+n)}\\ \end{align*}

Mathematica [A]  time = 0.060855, size = 81, normalized size = 1. \[ \frac{d x \, _2F_1\left (1,\frac{1}{2 n};\frac{1}{2} \left (2+\frac{1}{n}\right );\frac{c x^{2 n}}{a}\right )}{a}+\frac{e x^{n+1} \, _2F_1\left (1,\frac{n+1}{2 n};\frac{1}{2} \left (3+\frac{1}{n}\right );\frac{c x^{2 n}}{a}\right )}{a (n+1)} \]

Antiderivative was successfully verified.

[In]

Integrate[(d + e*x^n)/(a - c*x^(2*n)),x]

[Out]

(d*x*Hypergeometric2F1[1, 1/(2*n), (2 + n^(-1))/2, (c*x^(2*n))/a])/a + (e*x^(1 + n)*Hypergeometric2F1[1, (1 +
n)/(2*n), (3 + n^(-1))/2, (c*x^(2*n))/a])/(a*(1 + n))

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Maple [F]  time = 0.043, size = 0, normalized size = 0. \begin{align*} \int{\frac{d+e{x}^{n}}{a-c{x}^{2\,n}}}\, dx \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((d+e*x^n)/(a-c*x^(2*n)),x)

[Out]

int((d+e*x^n)/(a-c*x^(2*n)),x)

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Maxima [F]  time = 0., size = 0, normalized size = 0. \begin{align*} -\int \frac{e x^{n} + d}{c x^{2 \, n} - a}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((d+e*x^n)/(a-c*x^(2*n)),x, algorithm="maxima")

[Out]

-integrate((e*x^n + d)/(c*x^(2*n) - a), x)

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Fricas [F]  time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (-\frac{e x^{n} + d}{c x^{2 \, n} - a}, x\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((d+e*x^n)/(a-c*x^(2*n)),x, algorithm="fricas")

[Out]

integral(-(e*x^n + d)/(c*x^(2*n) - a), x)

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Sympy [C]  time = 6.49664, size = 158, normalized size = 1.95 \begin{align*} \frac{d x \Phi \left (\frac{c x^{2 n} e^{2 i \pi }}{a}, 1, \frac{1}{2 n}\right ) \Gamma \left (\frac{1}{2 n}\right )}{4 a n^{2} \Gamma \left (1 + \frac{1}{2 n}\right )} + \frac{e x x^{n} \Phi \left (\frac{c x^{2 n} e^{2 i \pi }}{a}, 1, \frac{1}{2} + \frac{1}{2 n}\right ) \Gamma \left (\frac{1}{2} + \frac{1}{2 n}\right )}{4 a n \Gamma \left (\frac{3}{2} + \frac{1}{2 n}\right )} + \frac{e x x^{n} \Phi \left (\frac{c x^{2 n} e^{2 i \pi }}{a}, 1, \frac{1}{2} + \frac{1}{2 n}\right ) \Gamma \left (\frac{1}{2} + \frac{1}{2 n}\right )}{4 a n^{2} \Gamma \left (\frac{3}{2} + \frac{1}{2 n}\right )} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((d+e*x**n)/(a-c*x**(2*n)),x)

[Out]

d*x*lerchphi(c*x**(2*n)*exp_polar(2*I*pi)/a, 1, 1/(2*n))*gamma(1/(2*n))/(4*a*n**2*gamma(1 + 1/(2*n))) + e*x*x*
*n*lerchphi(c*x**(2*n)*exp_polar(2*I*pi)/a, 1, 1/2 + 1/(2*n))*gamma(1/2 + 1/(2*n))/(4*a*n*gamma(3/2 + 1/(2*n))
) + e*x*x**n*lerchphi(c*x**(2*n)*exp_polar(2*I*pi)/a, 1, 1/2 + 1/(2*n))*gamma(1/2 + 1/(2*n))/(4*a*n**2*gamma(3
/2 + 1/(2*n)))

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Giac [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \int -\frac{e x^{n} + d}{c x^{2 \, n} - a}\,{d x} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((d+e*x^n)/(a-c*x^(2*n)),x, algorithm="giac")

[Out]

integrate(-(e*x^n + d)/(c*x^(2*n) - a), x)