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MathematicsFunctionsDomain-RangeMedium2 minQB

MathematicsMediumsingle choice

The range of the function $f (x) =^{7 - x} P_{x - 3}$ is

Answer:

Solution:

$f (x)$ is defined $\Rightarrow x - 3 \geq 0$ , $x - 3 \leq 7 - x \Rightarrow x \geq 3$ ,

$2 x \leq 10 \Rightarrow 3 \leq x \leq 5 \Rightarrow x = 3$ or 4 or 5.

Stream:JEESubject:MathematicsTopic:FunctionsSubtopic:Domain-Range

⏱ 2mℹ️ Source: QB

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