Question

[CBSE 2016]
3. The following real numbers have decimal expansions as given below. In each case state whether they
are rational or not. If they are rational of the form
, what can you say about the prime factors of q? |
(i) 123-096
(iv) 43.123456789
(ii) 21.23478
(u) 0-120120012000120000 ...
(iii) 43-123456789
[NCERT)​

Answer 1

Answer:

a. rational. the factors of q will be in the power of prime factors of 2 and 5

b. rational. same as in a

c. rational. same as in a

d. irrational

e. rational. same as in a

Step-by-step explanation:

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