Math, asked by mridulrajbonshi64, 2 months ago

Is (3 + V2) (3 - V2) a rational or an irrational ?

Answers

Answered by Anonymous

2

Answer:

rational number

I hope it will help u

Answered by Anonymous

4

Answer :--

(3 + √2) (3 - √2)

= (3)² - (√2)²

= 9 - 2

= 7

Identity used :-
(a+b)(a-b) = a²-b²

7 is a rational number

So, (3+√2)(3-√2) is a rational number

@PurpLeQueeN

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