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OleMash [197]
3 years ago
14

I don’t understand the symbols in number 5 please

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
5 0

Binary Operations

The union of two sets A and B is denoted A ∪ B and

is defined as A ∪ B = {x|x ∈ A or x ∈ B}.

The intersection of two sets A and B is denoted A∩B

and is defined as A ∩ B = {x|x ∈ A and x ∈ B}.

Two sets are disjoint if they have no elements in common,

that is, A and B are disjoint if A ∩ B = ∅.

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Answer:

Step-by-step explanation:

x = 3

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