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1.a set is a collection of objects or elements or members,,it is denoted by capital letter S 2. Its the number of elements in a set and is denoted by || e.g |A|=4 3.this is a set which contains no element 4.two sets S and T are said to be equal denoted by S=T if every element of S belong to T and vice versa
lily nekesa answered the question on November 18, 2017 at 13:02
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