Asked by Josh

don't have a good teacher. need to understand how if can solve to figure out if this is undefined
t-3/3-5
Answered by bobpursley
it is undefined it you try to divide by zero. Dividing by zero is UNDEFINED.

I don't see a zero division there, but am not certain what it is without parenthesis.
Answered by Josh
is this what you are saying......... (t-5)/(3-t)..i need to list the numbers for which the rational expression is undefined.
Answered by bobpursley
with that, then t=3 is undefined; the denominator is zero.
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