Question

pls solve this choose an irrational number and how​

Answer 1

Step-by-step explanation:

Last one is irrational as the values of root 2 and root 3 is irrational

Answer 2

Answer:

4) is irrational

Step-by-step explanation:

Here is why the other three options are not irrational:

1) 2 - √4 = 2 - ( ±2 ) = 0 or 4, which are rational.

2) ( √5 ) ^ 2 = √5 × √5 = 5, which is rational

3) √9 - √4 = ±3 - ( ±2 ) = 1 or 5 or - 5 or -1, all of which are rational.

However, in 4) √2 - √3,

Both √2 and √3 are irrational.

Their difference cannot be expressed as a rational number.

Hence, 4) is irrational.