3.59 \(\int \frac{x^2}{(b x^2)^{5/2}} \, dx\)

Optimal. Leaf size=19 \[ -\frac{1}{2 b^2 x \sqrt{b x^2}} \]

[Out]

-1/(2*b^2*x*Sqrt[b*x^2])

________________________________________________________________________________________

Rubi [A]  time = 0.0018013, antiderivative size = 19, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.154, Rules used = {15, 30} \[ -\frac{1}{2 b^2 x \sqrt{b x^2}} \]

Antiderivative was successfully verified.

[In]

Int[x^2/(b*x^2)^(5/2),x]

[Out]

-1/(2*b^2*x*Sqrt[b*x^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 \frac{x^2}{\left (b x^2\right )^{5/2}} \, dx &=\frac{x \int \frac{1}{x^3} \, dx}{b^2 \sqrt{b x^2}}\\ &=-\frac{1}{2 b^2 x \sqrt{b x^2}}\\ \end{align*}

Mathematica [A]  time = 0.0012668, size = 16, normalized size = 0.84 \[ -\frac{x^3}{2 \left (b x^2\right )^{5/2}} \]

Antiderivative was successfully verified.

[In]

Integrate[x^2/(b*x^2)^(5/2),x]

[Out]

-x^3/(2*(b*x^2)^(5/2))

________________________________________________________________________________________

Maple [A]  time = 0.002, size = 13, normalized size = 0.7 \begin{align*} -{\frac{{x}^{3}}{2} \left ( b{x}^{2} \right ) ^{-{\frac{5}{2}}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^2/(b*x^2)^(5/2),x)

[Out]

-1/2*x^3/(b*x^2)^(5/2)

________________________________________________________________________________________

Maxima [A]  time = 0.999191, size = 11, normalized size = 0.58 \begin{align*} -\frac{1}{2 \, b^{\frac{5}{2}} x^{2}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2/(b*x^2)^(5/2),x, algorithm="maxima")

[Out]

-1/2/(b^(5/2)*x^2)

________________________________________________________________________________________

Fricas [A]  time = 1.45088, size = 38, normalized size = 2. \begin{align*} -\frac{\sqrt{b x^{2}}}{2 \, b^{3} x^{3}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2/(b*x^2)^(5/2),x, algorithm="fricas")

[Out]

-1/2*sqrt(b*x^2)/(b^3*x^3)

________________________________________________________________________________________

Sympy [A]  time = 1.00513, size = 17, normalized size = 0.89 \begin{align*} - \frac{x^{3}}{2 b^{\frac{5}{2}} \left (x^{2}\right )^{\frac{5}{2}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**2/(b*x**2)**(5/2),x)

[Out]

-x**3/(2*b**(5/2)*(x**2)**(5/2))

________________________________________________________________________________________

Giac [F]  time = 0., size = 0, normalized size = 0. \begin{align*} \mathit{sage}_{0} x \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2/(b*x^2)^(5/2),x, algorithm="giac")

[Out]

sage0*x