Question

IS THE NUMBER (5+UNDER ROOT 2)(5-UNDER ROOT2) RATIONAL &IRRATIONAL

Answer 1

Answer:

Hope it helps u

If u like the and then pls mark it as the brainliest...

Thanku

Answer 2

STEP BY STEP SOLUTION

USE IDENTITY (a+b)(a-b) = a sq. - b sq.

from these u will get

(5+root2)(5-root2)

= 5 sq. - root 2 sq.

= 25- 2

= 23

AND 23 IS A RATIONAL NO.

PLZ MARK AS A ........