Question

If U = { 1, 2, 3, 4,....} and A = {1, 3, 5, .......} find A'.​

Answer 1

Answer:

{2, 4, 6, 8, ... }

Step-by-step explanation:

A'  refers to the set of those elements, which are in universal set(U) but not in A.

Here,

U = {1,2,3,4...} = set of natural numbers.

And,

A = {1,3,5...} = set of +ve odd numbers.

 So, if we leave all the odd numbers, we will have the even numbers only.

Hence,

A' = set of +ve even numbers

   = {2, 4, 6, ...}