The document Very Short Answers - Number System Class 9 Notes | EduRev is a part of the Class 9 Course Class 9 Mathematics by Full Circle.

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**Ques 1. What is the value of (23) ^{2}? Solution: **(2

=2

=2 x 2 x 2 x 2 x 2 x 2 = 64

**Solution:** 1, 0, 3.14 and are rational numbers.**Ques 5. Which of the following cube roots is not irrational?**

**Solution:** is not an irrational number.

**Ques 6. Which three integers are equal to their own cube roots?Solution: **–1, 0 and 1

Solution:

Solution:

Solution:

Solution:

Solution:

Solution:

Solution:

Solution:

[∵ = 3.142857142... and π =3.141592653589...]

**Solution: ** is irrational.

**Ques 16. Which of the following is the value of 0.999... expressed as p/q : **

(i) 9/10 (ii) 1 (iii) 999/1000**Solution: **0.999... = 1**Ques 17. What is a terminating decimal?Solution: **The number with a finite decimal part are known as terminating decimal.

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