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23 April, 00:53

A rational expression is undefined whenever its numerator is zero.

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  1. 23 April, 01:16
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    False

    Step-by-step explanation:

    for a rational number expressed as (A / B) where A & B are integers

    if the numerator (A) is zero, then (A/B) is simplify zero

    i. e (A / B) = (0 / B) = 0

    however if the denominator (B) is zero, then by definition any value divided by zero is undefined.

    (A / B) = (A / 0) = {undefined}
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