Question

`sqrt(2)` is ______.

Options

• a rational number

• an irrational number

• a terminating decimal

• a nonterminating repeating decimal

Answer 1

`sqrt(2)` is an irrational number.

Explanation:

The square root of `2(sqrt(2))` cannot be expressed as a fraction of two integers `(a/b)` where b ≠ 0. Its decimal form is 1.41421356..., which continues forever without a repeating pattern.