Question

solve whether the no( root 3-root 2)(root 3+root 2 )os rational or irrational​

Answer 1

Answer:

it is a rational number

Step-by-step explanation:

(root 3 - root 2 ) ( root 3 + root 2) = (a -b) (a +b) = a2 - b2.

therefore,

(root 3 -root 2) ( root 3 + root 2) = (root 3 )2 - (root 2 )2

= 3 -2

= 1

1 is a rational number