Question

What number can you multiply by

V 2
to get a rational number?
Select each correct answer.
V2
2
1/2
0

Answer 1

`√(2)`

Explanation:

A rational number has the form

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

Given

-
`√(2)` ( multiplying by
`√(2)` gives )

-
`√(2)` ×
`√(2)`

= - 2

=
`(-2)/(1)` ← a rational number