Determine if each of the following objects is a member of Z;

{5}, {3, −1}, 7.12,√5, a = the 2,00th decimal digit in the base-10 expression for π

# Problem on basic theorm

**lucky_harsha**#1

**supriyas**#2

2000th decimal digit will be from 0 to 9 so it belongs to Z ,set of integers

{3,-1} is not a single integer so i think not belong to Z

7.12 also not a integer

√5

is an irrational number (how do u proove it)