Question

Let" A" be a non zero rational number and "B" be a irrational number .Is 'ab' neccessarily an irrational . Justify yoir answer with example​

Answer 1

As we know before,

The product of rational and irrational number is an irrational number.

If a is a rational number and b is an irrational number

Then ab is irrational.

Example:

a=2 and b=

3

ab=2

3

is an irrational number.