Question

Which is not rational number from options

1) $\dfrac{5}{0}$
2) $\dfrac{0}{3}$
3) 2
4) $\dfrac{1}{2}$
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Answer 1

1) 5/0 is not a rational number, because 5/0 = ∞

so, the other options are rational numbers, and (1) 5/0 is not a rational number.

Hope this helps you.

Answer 2

Answer:

$\dfrac{5}{0}$ is not a rational number

Beacuse, in rational number denominator should not be 0

So, answer is $\dfrac{5}{0}$