Mathematics

Problem

x^{2/3} + y^{2/3} = a^{2/3}

, then

\frac{dy}{dx} =

(a)

\left( \frac{y}{x} \right)^{1/3}

(b)

-\left( \frac{y}{x} \right)^{1/3}

(c)

\left( \frac{x}{y} \right)^{1/3}

(d)

-\left( \frac{x}{y} \right)^{1/3}