Question

say the set builder form of
AUB,A intersection B,A-B.

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Answer 1

Answer:

section of two sets a and b is the set of all the element which are common in a and b this is denoted by a and b and read as a intersection b.

set builder:

a and b ={x:x€a and x€b}={x:x€a^x€b}

hope it helps ☺️