Q12 of 114 Page 43

Give an example of two irrationals whose sum is rational.

Let’s take (2 + ) and (2 ‒ ).

These are irrational numbers.


Their sum = (2 + ) + (2 ‒ ) = 4 {which is rational}.


More from this chapter

All 114 →
10

Prove that (2 +√3) is irrational.

 11

Find the HCF and LCM of 12, 15, 18, 27.

 13

Give prime factorization of 4620.

 14

Find the HCF of 1008 and 1080 by prime factorization method.