AM-1686

Stationary points

A Math · Secondary 4 · Medium · Stationary points

The curve

y = 2x^3 - 9x^2 + 12x

has a stationary point at

x = k

. Find the value of

k

.

$x = 1\text{ or }2$
$x = -1\text{ or }2$
$x = 1\text{ only}$
$x = 2\text{ only}$

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