Question:
Which of the following is an irrational number?
(a) $\frac{22}{7}$
(b) $3.1416$
(c) $3 . \overline{1416}$
(d) 3.141141114...
Solution:
(d) 3.141141114...
3.141141114 is an irrational number because it is a non-repeating and non-terminating decimal.
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