The Mystery of Zero in Arithmetic

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Question: In the expression $x/y = z$ , if $x$ is any positive integer and $y$ is $0$ , why is $z$ considered “undefined” in arithmetic?

A) Because $z$ is always equal to $1$ .

B) Because there is no number that, when multiplied by $0$ , results in a non-zero x.

C) Because the result is too large for a calculator to display.

D) Because $0 divided by any number is 0.$

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