Let . Find the -coordinate at which attains a local…

MATHEMATICS · Single correct · A Level · Mathematics · Differentiation · Differentiation

Problem

Let f(x)=x3−6x2+9x+7f(x)=x^{3}-6x^{2}+9x+7. Find the xx-coordinate at which ff attains a local minimum. (a) x=4x=4 (b) x=3x=3 (c) x=1x=1 (d) x=2x=2

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