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Find the derivative of $\frac{x^2}{y}$ using the definition. Apply the definition of the derivative: $\displaystyle f'(x)=\lim_{h\to0}\frac{f(x+h)-f(x)}{h}$. The function $f(x)$ is the function we want to differentiate, which is $\frac{x^2}{y}$. Substituting $f(x+h)$ and $f(x)$ on the limit, we get
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$\lim_{h\to0}\left(\frac{\frac{\left(x+h\right)^2}{y}-\frac{x^2}{y}}{h}\right)$
Learn how to solve definition of derivative problems step by step online. Find the derivative of (x^2)/y using the definition. Find the derivative of \frac{x^2}{y} using the definition. Apply the definition of the derivative: \displaystyle f'(x)=\lim_{h\to0}\frac{f(x+h)-f(x)}{h}. The function f(x) is the function we want to differentiate, which is \frac{x^2}{y}. Substituting f(x+h) and f(x) on the limit, we get. Combine \frac{\left(x+h\right)^2}{y}-\frac{x^2}{y} in a single fraction. Multiplying the fraction by -1. Multiplying the fraction by y.