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There are three real numbers that are not in the domain of
f(x) = (x - 1)(x - 2)(x - 3)/(x(x - 1)(x - 2))
What is the sum of those three numbers?

 Jun 11, 2022
 #1
avatar+13728 
+1

The domain of
\(f(x) = (x - 1)(x - 2)(x - 3)/(x(x - 1)(x - 2) \)

is

\(x\in \mathbb R \ |\ x \in \{0,1,2\}\\ \color{blue}0+1+2=3\)

The sum of those three numbers is 3.

laugh  !

 Jun 11, 2022

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