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For the fx gr...

Question

For the $f (x)$ graph is given . If the range of this function is
$[a, b]$ then $a + b =$

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Solution

Given the graph of $f (x)$ as:
Clearly it's range is $[1, 8]$
Comparing with $[a, b]$
$a = 1, b = 8$
$\Rightarrow a + b = 1 + 8 = 9$

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