If $X=\{a, b, c, d\}$ and $Y=\{f, b, d, g\},$ find
$X-Y$
$\{ a,c\} $
$X-Y=\{a, c\}$
Show that the following four conditions are equivalent:
$(i)A \subset B\,\,\,({\rm{ ii }})A – B = \phi \quad (iii)A \cup B = B\quad (iv)A \cap B = A$
If $A$ and $B$ are sets, then $A \cap (B -A)$ is
Consider the following relations :
$(1) \,\,\,A – B = A – (A \cap B)$
$(2) \,\,\,A = (A \cap B) \cup (A – B)$
$(3) \,\,\,A – (B \cup C) = (A – B) \cup (A – C)$
which of these is/are correct
If $A$ and $B$ are two sets such that $A \subset B$, then what is $A \cup B ?$
Find the union of each of the following pairs of sets :
$A = \{ x:x$ is a natural number and $1\, < \,x\, \le \,6\} $
$B = \{ x:x$ is a natural number and $6\, < \,x\, < \,10\} $
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