Question

which of the following is not a rational no.(a).root2 . (b).root4.(c).root9.(d)root25​

Answer 1

Answer:

root 2

Step-by-step explanation:

as root 25 is 5

root 9 is 3

and root 4 is 2

Answer 2

Answer:

√2 is not a rational no.

Step-by-step explanation:

Let's suppose √2 is a rational number. Then we can write it √2 = a/b where a, b are whole numbers, b not zero. We additionally assume that this a/b is simplified to lowest terms, since that can obviously be done with any fraction.