" If "X uu{1,2}={1,2,3,5,9}" ,then "

Find the smallest set A such that A uu{1,2}={1,2,3,5,9}

If X={1,2,3,4,5},Y={1,3,5,7,9} then find the value of X nn Y and (X-Y)uu(Y-X)

If A={1,2,3} and B={1,3,5,7}, then A uu B={1,2,3,5,7}

If A={1,2,3,4,5} and B={1,3,5,7,9} then find the value of (A-B)uu(B-A)

If U={2,3,5,7,9} is the universal set and A={3,7},B={2,5,7,9}, then prove that: (A uu B)'=A'nn B'( ii) (A uu B)'=A'uu B'

If A={1,2,3,4,5} and B={3,4} then A uu B=

Let X={1,2,3,4,5,6,7,8,9}. Let R be a relation in X given by R_(1)={(x,y):x-y is divisible by 3} and R_(2) another on X given by R={(x,y):(x,y)uu{1,4,7}} or {x,y}uu{2,5,8} or {x,y}uu{3,6,9}} Show that R_(1)=R_(2).

Let X={1,2,3,4,5,6,7,8,9}. Let R be a relation in X given by R_1={(x,y):x-y is divisible by 3} and R_2 another on X given by R={(x,y):(x,y)uu{1,4,7}} or {x,y} uu {2,5,8} or {x,y} uu {3,6,9}} Show that R_1=R_2.