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Standard XII

Mathematics

Ordered Pair

For a functio...

Question

For a function $f : A \to B,$ if the number of elements in set $A$ and $B$ are $5$ and $3$ respectively, then the number of one-one function(s) is

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Solution

Clearly, $n (B) < n (A)$ in this case one-one function in not possible.

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Ordered Pair

Standard XII Mathematics

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For a function f:A→B, if the number of elements in set A and B are 5 and 3 respectively, then the number of one-one function(s) is

Clearly, n(B)<n(A) in this case one-one function in not possible.

For a function $f : A \to B,$ if the number of elements in set $A$ and $B$ are $5$ and $3$ respectively, then the number of one-one function(s) is

Clearly, $n (B) < n (A)$ in this case one-one function in not possible.