What is the integral of x/(sqrt((1-3x^2))) ?

The integral of x/(sqrt((1-3x^2))) is -1/3 sqrt(1-3x^2)+C

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integral of x/(sqrt((1-3x^2)))

\int \frac{x}{( 1 - 3 x ^{2} )} d x

- \frac{1}{3} 1 - 3 x^{2} + C

Solution steps

\int \frac{x}{1 - 3 x ^{2}} d x

Apply u-substitution

: \int - \frac{1}{6 u} d u

= \int - \frac{1}{6 u} d u

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= - \frac{1}{6} \cdot \int \frac{1}{u} d u

Apply the Power Rule

: 2 u^{\frac{1}{2}}

= - \frac{1}{6} \cdot 2 u^{\frac{1}{2}}

Substitute back

u = 1 - 3 x^{2}

= - \frac{1}{6} \cdot 2 (1 - 3 x^{2})^{\frac{1}{2}}

Simplify

- \frac{1}{6} \cdot 2 (1 - 3 x^{2})^{\frac{1}{2}} : - \frac{1}{3} 1 - 3 x^{2}

= - \frac{1}{3} 1 - 3 x^{2}

Add a constant to the solution

= - \frac{1}{3} 1 - 3 x^{2} + C

x^{^{''}} - x^{^{'}} = 0

y - 2 y^{^{''}} + y^{^{''''}} = 0

x \to - 2 lim (lo g_{2} (8))

(x, y) \to (0, 0) lim (x - y)

\frac{d}{d x} (\frac{( 1 - ln ( x ) )}{x ^{2}})

What is the integral of x/(sqrt((1-3x^2))) ?
The integral of x/(sqrt((1-3x^2))) is -1/3 sqrt(1-3x^2)+C