Question

Classify the number √23 as rational or irrational. Options: a) Rational b) Irrational

Answer 1

b

Explanation:

a rational number can be expressed in the form

`(a)/(b)` where a and b are integers

`√(23)` has no factors which are perfect squares and so cannot be expressed in this form.

then
`√(23)` is irrational