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If A =1,2,3,4...

Question

If $A = {1, 2, 3, 4, 5}$ then which of the following is correct?

A

3 \notin A

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B

{2} \in A

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C

ϕ \in A

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D

4 \in A

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Solution

The correct option is D $4 \in A$
Only element belongs/not-belongs to set $A$
From the options $4 \in A$ is correct

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