Give two irrational number lying between 𢆢 and 𢆣.

23 Find two irrational numbers between 0.1 and 0.12. 24 Give an example to show that the product of a rational number and an irrational number may be a rational number. 26 State with reason which of the following are surds and which are not.
         (i) × (ii) × (iii) × (iv) × (v) 5× 2
         (vi) × (vii) × (viii) 6× 9 (ix) × (x) × 27  Express the following recurring decimals into vulgar fractions :