1.

If A ={x:x in I, -2 le x le 2 }, B={x : x in I , 0 le x le 3 }, C={x :x in N , 1 le x le 2}, D={(x,y): (x,y) in N xx N , x+y=8}. Then :

Answer»

`n (B uuC)`=5
n(D)=6
`n(Auu(B uu C))=5`
NONE of these

Answer :D


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