√2 is irrational
a rational number Q can be expressed in the form [tex]\frac{a}{b}[/tex] where a and b are integers.
- 18 = [tex]\frac{- 18}{1}[/tex] ⇒ rational
[tex]\frac{2}{3}[/tex] ⇒ rational
3.14 = [tex]\frac{314}{100}[/tex] ⇒ rational
√2 = 1.414213562...... ⇒ irrational
