Question

The number (3-√7) (3 + √7) is :
(i) Anatural number
(ii) An irratioanl number
(iii) A rational number
(iv) Both ) and (III)​

Answer 1

Answer:

rational number is a number than can be expressed as a fraction of two whole numbers. Such as or . is not a rational number even though it ...

Answer 2

Answer:

4) both 1 and 3

Explanation:

We know that product of two terms (a+b) & (a - b) is a^2 - b^2

Here given number is product of ( 3 - √7) & ( 3 + √7) = 9 - 7 = 2 which is a Rational one.

So the number given is rational and a natural number.