Question

If U = {1,2,3,4,5} and A = {2,4} then A' should be?
A ) {2,4,5}
B) {2,4}
C) {1,2,3,4,5}
D) {1,3,5}

Answer 1

Answer:

a not means everything except a

here u is everything so

(1,3,5)

d is the answer

Answer 2

If U = {1,2,3,4,5} and A = {2,4} then A' = {1,3,5}

Given : U = {1,2,3,4,5} and A = {2,4}

To find : The set A' =

A ) {2,4,5}

B) {2,4}

C) {1,2,3,4,5}

D) {1,3,5}

Solution :

Step 1 of 2 :

Write down the given sets

Here it is given that

U = {1,2,3,4,5} and A = {2,4}

Step 2 of 2 :

Find A'

We know that for any given set A the complement of A is denoted by A' and defined as the set of all elements which are not in A

A' = { x ∈ U : x ∉ A }

∴ A'

= {1,2,3,4,5} - {2,4}

= {1,3,5}

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