Example:
If E = { x: x = 2n for n 
N}, O = {x : x = 2n + 1 for n
}, and I = {x
R:
x2 = -2}, then what, in your own words, do these sets
represent ?
- The set E is the set of all even integers.
- The set O is the set of all odd integers.
- The set I consists of all reals numbers whose square equals -2.
Since there are no such real numbers, the set I is the empty set.
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