Q20 of 131 Page 1

Identify the following as rational or irrational numbers. Give the decimal representation of rational numbers.
(i)  
(ii) 3 
(iii) 
(iv) 
(v) - 
(vi)

(i) = 2 is rational.
(ii) 3= 3=3 × 3= 9 is irrational.
(iii) === 1.2 is rational.
(iv) = ==is irrational.
(v) - = -0.8 is rational.
(vi)= 10 is rational.

More from this chapter

All 131 →
18 Express 18.484848…………….in the form of . 19 Show that is not a rational number. 21 Find two irrational numbers between 2 and 2.5. 22 In the following equations, find which of the variables x, y, z etc. represent rational numbers and which represent irrational numbers:
        (i) x2 = 5
        (ii) y2 = 9
        (iii) z2 = 0.04
        (iv) u2 = 
        (v) v2 = 3
        (vi) w3 = 27
        (vii) t2 = 0.4