Question

the no. (√x+√y)(√x-√y) where x,y,0 is
a)rational
b)irrational
c)both
d)none​

Answer 1

Answer:

it is rational number

Step-by-step explanation:

(root x + root y) (root x - root y )

= (root x)2 - (root y )2

= x - y

= x-y is a rational number