Question

Which of the following is not irrational

(a)(2 – √3)2. ()(√2 − √3)(√2 + √3)

(b) (2 + √3)2. (d) 2√7/7​

Answer 1

Explanation:

a) (2 - √3) : it is irrational number.

b) (2 + √3) : it is an irrational number.

c) (√2 - √3) : it is an irrational number.

d) 2√7/7 : it is an rational number.

e) (2 + √3) : it is an irrational number.

Answer:

Hence option d) is not a irrational number.

Answer 2

Answer:

Explanation:

Hence option d) is not a irrational number.