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2.Relations and Functions
easy
જો $A=\{1,2\}$ અને $B=\{3,4\}$ તો $A$ થી $B$ ના સંબંધની સંખ્યા શોધો.
Option A
Option B
Option C
Option D
Solution
We have,
$A \times B=\{(1,3),(1,4),(2,3),(2,4)\}$
Since $n( A \times B )=4,$ the number of subsets of $A \times B$ is $2^{4} .$
Therefore, the number of relations from $A$ into $B$ will be $2^{4}$.
Standard 11
Mathematics
