Question

Which numbers are Irrational? Select all that apply.

A. √36

B. √15

C. √64

D. √57

E. √8

Answer 1

A,D and E and this is the correct answer

Answer 2

B, D and E.

Explanation:

These numbers are irrational because their exact values can only be represented by those square roots. If you try to "do the maths", it will be something like:

\sqrt{15} = 3.872983...\\

\sqrt{57} = 7.549834...\\

\sqrt{8} = 2.828427...