Question

which of the following is irrational a.√4/9,b.√7,c.√81,d.√25 and give the answer with explain​

Answer 1

Hey there!

Answer:

b. √7 is a irrational number.

Step-by-step explanation:

Option a, c , d cannot be irrational numbers.

Since, a) √4 / 9 can be written as =  2 / 9 which is rational.

c) √81 . It can be written as 9. So it is rational.

d) √25. It can be written as 5. So, it is rational.

Hope it Helps You!