Question

Which of the following is not irrational?

1 point

(2 – √3)

(√2 + √3)

(√2 -√3)(√2 + √3)

(d)27√7​

Answer 1

Answer:

option D

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Answer 2

Answer:

(c) (√2 -√3)(√2 + √3)

Step-by-step explanation:

(√2 -√3)(√2 + √3)

$(a + b)(a - b) = {a}^{2} - {b}^{2}$

${ \sqrt{2} }^{2} - { \sqrt{3} }^{2}$

$2 - 3$

$- 1$

Hence it is rational

Not irrational