Question 25: Let M={3,a,b,c}. Choose the wrong sentence.

Quiz Question 25: Let M={3,a,b,c}. Choose the wrong sentence.





Think and answer the question before looking at the answer

Apply the use of the symbol hiệu:

For example:

+) 2∈A reads as 2 of A or 2 is an element of A.

+) 6 \(\notin\) A reads as either 6 not in A or 6 not being an element of A.

We see that a is an element of the set M, so a∈M. Hence B is wrong.

Select REMOVE

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