Question

which of the following is a irrational number 1.√4 2.√64 3.√32 4.√81

Answer 1

Answer:

1, 2 & 4 are rational numbers.

Answer 2

Answer:

3. √32

Step-by-step explanation:

An irrational number is a number that cannot be expressed as a fraction for any integers.

In the above numbers, √32 is irrational and all remaining are rational bcoz

√4 = 2

√64 = 8

√81 = 9

Hence √32 is the irrational number.

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