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CDS Critical Points — practice questions

2 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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If $f(x) = x^3 - 3x$, the values of $x$ where $f'(x) = 0$ are:The function $f(x) = x^3 - 3x + 1$ has critical points at: