(1)Decide which of the following are equal sets and which are are not? Justify your answer .
A={x-3x-1=2}
B={x/x is natural number but cos neither prime number nor composite}
C= {x/x£ of N, x<2 }
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Required Answer:-
A = { x|3x-1=2 } = 1
B = { x|x is a natural number but x is neither prime nor composite } = 1
C = { x|x ∈ |N,x<2} = 1
So,all the sets are equal.
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