Question

Q1. The number (3-√2) (3+√2)
1 point
is *
O (a) A natural number
O (c) A rational number
ОООО
O (b) An irrational number
O (d) Both (a) and (c)​

Answer 1

Answer:

(d) Both (a) and (c)

Step-by-step explanation:

We know, a²-b²=(a+b)(a-b)

Here a=3 and b=√(2)

(3-√2)(3+√2)=3²-(√2)²=9-2=7