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Real Valued Functions

fx=x-1x-2x-3,...

Question

$f (x) = (x - 1) (x - 2) (x - 3),$
find $f (5)$

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Solution

$f (x) = (x - 1) (x - 2) (x - 3) f (5) = (5 - 1) (5 - 2) (5 - 3) f (5) = 4 (3) (2) = 24$

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