The absolute minimum and maximum values of the function are:

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

Problem

The absolute minimum and maximum values of the function

f(x)=\frac{x^2-x+1}{x^2+x+1}

are: (1)

1

and

3

(2)

\frac{1}{2}

and

3

(3)

\frac{1}{3}

and

3

(4) None of these