Question

what is a irrational number

Answer 1

any number of the type
\[\sqrt{x},where x is \not a perfectsquare.e.g.,\sqrt{3},\sqrt{5},-\sqrt{7} etc\]

Answer 2

A real number that cannot be written as a simple fraction - the decimal goes on forever without repeating.

Example: Pi is an irrational number.

Answer 3

\[\pi is irrational number \]
\[but \frac{ 22 }{7 } or \frac{ 355 }{ 117 } are rational numbers.\]