Question

let x and y be rational and irrational numbers respectively is x y necessarily an irrational number? Give an example in support of ur answer.

Answer 1

Step-by-step explanation:

Eg.= take

x=2 (rational)

y=_/2 (irrational)

xy=2 × _/2

=2_/2

which is irrational

hence,it is proves that product of one rational and one irrational is always irrational