Question

2. Classify the following numbers as rational or irrational. Give reasons to
support your answer.

(i)
3/18 under root
(ii) under root 361
(iii) 21 under root
(v) 1.44 under root
(vi)2/3 under root 6
(vii)4.1276
(viii)22/7
(ix) 3.040040004 ...
(x) 2.356565656 ...
(xi) 6.834834 ...​

Answer 1

Step-by-step explanation:

1. irrational as √(3/18) is not perfect square
2. rational. root is 19
3. irrational. not a perfect square
4. rational. root =1.2
5. irrational.
6. rational as decimal expansion is terminated
7. rational
8. irrational. non terminated non repeated
9. rational. non terminated repeated
10. rational.

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