Let . Which of the following -values is a location of a relative (local) maximum of…

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

Problem

Let

f(x)=x^{4}-4x^{2}+3

. Which of the following

x

-values is a location of a relative (local) maximum of

f

? (a)

x=2

(b)

x=0

(c)

x=\sqrt{2}

(d)

x=\sqrt{\dfrac{2}{3}}