Question
Use the definition of a derivative to compute $D_x y$ where $y=x^3$.
Step 1
The derivative, denoted \( D_x y \) or \( f'(x) \), is given by the limit: \[ f'(x) = \lim_{h \to 0} \frac{f(x+h) - f(x)}{h} \] Show more…
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