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2.Relations and Functions
easy
मान लीजिए कि $A =\{1,2\}$ और $B =\{3,4\} . A$ से $B$ में संबंधों की संख्या ज्ञात कीजिए।
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