How do you find all the values that make the expression undefined: $(m - 3)/(3 - m)$ ?

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How do you find all the values that make the expression undefined: $(m - 3)/(3 - m)$ ?

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Answer 1 · 2015-05-27T14:08:18

Your expression is undefined when you get the value $m=3$ ; in this case you end up with $0/0$ which cannot be evaluated.
On the other hand your expression is interesting because collecting $-1$ from the numerator you get:
$-(3-m)/(3-m)=-1$ !!!

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How do you find all the values that make the expression undefined: $(m - 3)/(3 - m)$ ?

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How do you find all the values that make the expression undefined: $(m - 3)/(3 - m)$ ?