Q. 34.8( 5 Votes )

Find the maximum and the minimum values, if any, without using derivatives of the following functions:

f(x) = |x + 2| on R

Answer :

|x + 2|≥0 for x R

= f(x) ≥ 0 for all x R

So the minimum value of f(x) is 0, which attains at x =2

Hence, f(x) = |x + 2| does not have the maximum value.

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