Question

12. If A = {5, {5, 6}, 7} which of the following is correct?
a) {5}E A
b) {5, 6}E A
c){6}EA​

Answer 1

Answer:

If A={5,{5,6},7} then the elements of A are 5,{5,6},7

Hence 5∈A,{5,6}∈A, and 7∈A

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Step-by-step explanation: