Question
Use $f^{\prime}(x)=\lim _{h \rightarrow 0}[f(x+h)-f(x)] / h$ to find the derivative at $x$.$$f(x)=x^{2}+x+1$$
Step 1
This gives us: \[f'(x) = \lim_{h \rightarrow 0} \frac{f(x+h) - f(x)}{h}\] Show more…
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