SOLUTION: What is the n(A) in the following sets {1,3,5,7}?

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Question 759010: What is the n(A) in the following sets {1,3,5,7}?
Answer by solver91311(24713) About Me  (Show Source):
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is simply the number of elements in set . Count them.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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