3.16 \(\int \frac {1}{(1+x^2)^{3/2}} \, dx\)

Optimal. Leaf size=11 \[ \frac {x}{\sqrt {x^2+1}} \]

[Out]

x/(x^2+1)^(1/2)

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Rubi [A]  time = 0.00, antiderivative size = 11, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {191} \[ \frac {x}{\sqrt {x^2+1}} \]

Antiderivative was successfully verified.

[In]

Int[(1 + x^2)^(-3/2),x]

[Out]

x/Sqrt[1 + x^2]

Rule 191

Int[((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(x*(a + b*x^n)^(p + 1))/a, x] /; FreeQ[{a, b, n, p}, x] &
& EqQ[1/n + p + 1, 0]

Rubi steps

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

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Mathematica [A]  time = 0.00, size = 11, normalized size = 1.00 \[ \frac {x}{\sqrt {x^2+1}} \]

Antiderivative was successfully verified.

[In]

Integrate[(1 + x^2)^(-3/2),x]

[Out]

x/Sqrt[1 + x^2]

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fricas [B]  time = 0.40, size = 22, normalized size = 2.00 \[ \frac {x^{2} + \sqrt {x^{2} + 1} x + 1}{x^{2} + 1} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(x^2+1)^(3/2),x, algorithm="fricas")

[Out]

(x^2 + sqrt(x^2 + 1)*x + 1)/(x^2 + 1)

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giac [A]  time = 0.02, size = 9, normalized size = 0.82 \[ \frac {x}{\sqrt {x^{2} + 1}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(x^2+1)^(3/2),x, algorithm="giac")

[Out]

x/sqrt(x^2 + 1)

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maple [A]  time = 0.00, size = 10, normalized size = 0.91 \[ \frac {x}{\sqrt {x^{2}+1}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(x^2+1)^(3/2),x)

[Out]

x/(x^2+1)^(1/2)

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maxima [A]  time = 0.47, size = 9, normalized size = 0.82 \[ \frac {x}{\sqrt {x^{2} + 1}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(x^2+1)^(3/2),x, algorithm="maxima")

[Out]

x/sqrt(x^2 + 1)

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mupad [B]  time = 0.07, size = 9, normalized size = 0.82 \[ \frac {x}{\sqrt {x^2+1}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(x^2 + 1)^(3/2),x)

[Out]

x/(x^2 + 1)^(1/2)

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sympy [A]  time = 0.73, size = 8, normalized size = 0.73 \[ \frac {x}{\sqrt {x^{2} + 1}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(x**2+1)**(3/2),x)

[Out]

x/sqrt(x**2 + 1)

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