3.1069 \(\int x^{1-2 p} (a+b x^2)^p \, dx\)

Optimal. Leaf size=49 \[ \frac {x^{2-2 p} \left (a+b x^2\right )^{p+1} \, _2F_1\left (1,2;2-p;-\frac {b x^2}{a}\right )}{2 a (1-p)} \]

[Out]

1/2*x^(2-2*p)*(b*x^2+a)^(1+p)*hypergeom([1, 2],[2-p],-b*x^2/a)/a/(1-p)

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Rubi [A]  time = 0.02, antiderivative size = 64, normalized size of antiderivative = 1.31, number of steps used = 2, number of rules used = 2, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {365, 364} \[ \frac {x^{2-2 p} \left (a+b x^2\right )^p \left (\frac {b x^2}{a}+1\right )^{-p} \, _2F_1\left (1-p,-p;2-p;-\frac {b x^2}{a}\right )}{2 (1-p)} \]

Antiderivative was successfully verified.

[In]

Int[x^(1 - 2*p)*(a + b*x^2)^p,x]

[Out]

(x^(2 - 2*p)*(a + b*x^2)^p*Hypergeometric2F1[1 - p, -p, 2 - p, -((b*x^2)/a)])/(2*(1 - p)*(1 + (b*x^2)/a)^p)

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])

Rule 365

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

Rubi steps

\begin {align*} \int x^{1-2 p} \left (a+b x^2\right )^p \, dx &=\left (\left (a+b x^2\right )^p \left (1+\frac {b x^2}{a}\right )^{-p}\right ) \int x^{1-2 p} \left (1+\frac {b x^2}{a}\right )^p \, dx\\ &=\frac {x^{2-2 p} \left (a+b x^2\right )^p \left (1+\frac {b x^2}{a}\right )^{-p} \, _2F_1\left (1-p,-p;2-p;-\frac {b x^2}{a}\right )}{2 (1-p)}\\ \end {align*}

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Mathematica [A]  time = 0.02, size = 61, normalized size = 1.24 \[ \frac {x^{2-2 p} \left (a+b x^2\right )^p \left (\frac {b x^2}{a}+1\right )^{-p} \, _2F_1\left (1-p,-p;2-p;-\frac {b x^2}{a}\right )}{2-2 p} \]

Antiderivative was successfully verified.

[In]

Integrate[x^(1 - 2*p)*(a + b*x^2)^p,x]

[Out]

(x^(2 - 2*p)*(a + b*x^2)^p*Hypergeometric2F1[1 - p, -p, 2 - p, -((b*x^2)/a)])/((2 - 2*p)*(1 + (b*x^2)/a)^p)

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fricas [F]  time = 0.65, size = 0, normalized size = 0.00 \[ {\rm integral}\left ({\left (b x^{2} + a\right )}^{p} x^{-2 \, p + 1}, x\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^(1-2*p)*(b*x^2+a)^p,x, algorithm="fricas")

[Out]

integral((b*x^2 + a)^p*x^(-2*p + 1), x)

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int {\left (b x^{2} + a\right )}^{p} x^{-2 \, p + 1}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^(1-2*p)*(b*x^2+a)^p,x, algorithm="giac")

[Out]

integrate((b*x^2 + a)^p*x^(-2*p + 1), x)

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maple [F]  time = 0.28, size = 0, normalized size = 0.00 \[ \int x^{-2 p +1} \left (b \,x^{2}+a \right )^{p}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^(1-2*p)*(b*x^2+a)^p,x)

[Out]

int(x^(1-2*p)*(b*x^2+a)^p,x)

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int {\left (b x^{2} + a\right )}^{p} x^{-2 \, p + 1}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^(1-2*p)*(b*x^2+a)^p,x, algorithm="maxima")

[Out]

integrate((b*x^2 + a)^p*x^(-2*p + 1), x)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.02 \[ \int x^{1-2\,p}\,{\left (b\,x^2+a\right )}^p \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^(1 - 2*p)*(a + b*x^2)^p,x)

[Out]

int(x^(1 - 2*p)*(a + b*x^2)^p, x)

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sympy [F(-1)]  time = 0.00, size = 0, normalized size = 0.00 \[ \text {Timed out} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**(1-2*p)*(b*x**2+a)**p,x)

[Out]

Timed out

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