Find which of the variable x, y, z and u represent rational numbers and irrational numbers: (i) x 2 = 5 (ii) y 2 = 9 (iii) z 2 = .04 (iv) u 2 = [NCERT Exemplar]

Step-by-step solution

(i) x 2 = 5 ⇒ x = (Irrational) (ii) y 2 = 9 ⇒ y = ±3 (Rational) (iii) z 2 = 0.04 = ⇒ z = (Rational) (iv) u 2 = ⇒ u = (Irrational)