AM-1950

Stationary points

A Math · Secondary 4 · Hard · Stationary points

1. $x = \dfrac{13 + \sqrt{79}}{6}$ or $x = \dfrac{13 - \sqrt{79}}{6}$
2. $x = 1$ only
3. $x = \dfrac{5}{3}$ or $x = 3$
4. $x = \dfrac{3}{2}$ or $x = \dfrac{5}{2}$

Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.