Question

What’s the square root of 2

Answer 1

Since you multiply it by itself, you should get four.

Answer 2

The square root of 2, by definition of square root, is a number that gives 2 when squared.

So, it's a number defined by the following property:

`√(2)\cdot√(2) = (√(2))^2 = 2`

It is a decimal, non-period number, so we can only approximate its value, which is

`√(2) \approx 1.41421356237\ldots`