### The Quotient Rule

Calculus: We present the Quotient Rule for derivatives, memory trick included. Examples include (a) the derivative of f(x) = (x^3-x^2)/x, (b) the derivative of f(x) = (x^{1/3} - 1)/(x^{1/3} + 1), and (c) the Power Rule for the derivative of x^{-m/n} where m, n are positive integers.

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