Question

b) If x be a non-zero rational number and y
an irrtional number, prove that xy is irrational.​

Answer 1

For eg - Let x be 5 and y be root2 .
So the product will be xy that is 5root2, which is irrational

Answer 2

x be rational number and y be a irrational number

they both are p/q is p=0