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1. if n(A) = 11 and n(B) =4, then which of the, , following is wrong, , n(ANB)<4, None of these |, , n(A UB) < 15
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2.if P={x:xE& R,x <10} andQ={x:x€, R,x >11},thenPN Qis, , (10,11), [10,11] |, [0,11], , (10,11) |
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4. which is of the following is a singleton, , set?, , {x : x € Z, x? =25}, , {x x © N, x? =16} |, , {x : x ER, |x-1| = 4}, , {x :x © Z, |x| =4}
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5. if A = { 1,2,3,4,5} and B ={2,3,4,5} then, , which of below is false, , B-A ={1}, AUB =(1,2,3,4,5}, A-B={1}, , AN B=2,3,4,5}
