Question

Which of the following is an irrational number?

(a) $\frac{22}{7}$
(b) 3.1416
(c) $3.\overline{1416}$
(d) 3.141141114...

Answer 1

(d) 3.141141114...


3.141141114 is an irrational number because it is a non-repeating and non-terminating decimal.