Question

The following real numbers have decimal expansions as given below. In each case, decide whether they are rational or not. If they are rational, and of the form p/q, what can you say about the prime factors of q?
(a) 43.123456789
(b)0.120120012000120000....
(b)43.123456789​

Answer 1

Answer:

(a) rational

( b) irrational

(c) rational