First slide

Introduction to real valued functions

Question

The range of _{$| x - 3 | + | x - 6 |$} is

Moderate

A

_{$[2, \infty)$}
B

_{$[3, \infty)$}
C

_{$[4, \infty)$}
D

_{$[5, \infty)$}

Solution

$R a n g e o f |x - a| + |x - b| i s = [|b - a|, \infty)$
$\Rightarrow s o R a n g e o f g i v e n f u n c t i o n i s = [| 6 - 3 |, \infty) = [3, \infty)$

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