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2.Relations and Functions
easy
જો $A=\{1,2,3\}, B=\{3,4\}$ અને $C=\{4,5,6\},$ તો શોધો. $A \times(B \cup C)$
A
$\{ (1,3),(1,4),(1,5),(1,6),(2,3),(2,4),(2,5),(2,6),(3,3),(3,4),(3,5),(3,6)\} $
B
$\{ (1,3),(1,4),(1,5),(1,6),(2,3),(2,4),(2,5),(2,6),(3,3),(3,4),(3,5),(3,6)\} $
C
$\{ (1,3),(1,4),(1,5),(1,6),(2,3),(2,4),(2,5),(2,6),(3,3),(3,4),(3,5),(3,6)\} $
D
$\{ (1,3),(1,4),(1,5),(1,6),(2,3),(2,4),(2,5),(2,6),(3,3),(3,4),(3,5),(3,6)\} $
Solution
Since, $\quad( B \cup C)=\{3,4,5,6\},$ we have
$A \times (B \cup C) = \{ (1,3),(1,4),(1,5),(1,6),(2,3),(2,4),(2,5),(2,6),(3,3),$
$(3,4),(3,5),(3,6)\} $
Standard 11
Mathematics