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  4. If f: Rarrow R defined by f(x) = x if x>2, f(x) = 5x - 2 if x ≤ 2 then f is

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Q. If $f : R\rightarrow R$ defined by $f(x) = x$ if $x>2$, $f(x) = 5x - 2 $ if $x \leq 2$ then f is

Relations and Functions - Part 2

Solution:

$f (2) = f(8) \Rightarrow f$ is not one-one