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  • Stuck here, help me understand: If n(A) = 3 and n(B) = 5 . How many bijective functions are possible from A to B ?

If n(A) = 3 and n(B) = 5 .  How many bijective functions are possible from A to B ? 

  • Option 1)

    3!

  • Option 2)

    5!

  • Option 3)

    4!

  • Option 4)

    0

 

Answers (1)

best_answer

As we have learned

Number of Bijective Function -

If A & B are Bijective then n\left ( A \right )= n\left ( B \right )= m\left ( Say \right )

So number of Bijective functions= m!

-

 

 For bijections ; n(A) = n (B) 

 


Option 1)

3!

Option 2)

5!

Option 3)

4!

Option 4)

0

Posted by

Himanshu

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