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If n(A)=4\: ;\: n(B)=3. Then the total number of function from A to B is

  • Option 1)

    81

  • Option 2)

    64

  • Option 3)

    243

  • Option 4)

    16

 

Answers (1)

best_answer

As we learned 

 

Number of function -

f:A\rightarrow B

n\left ( A \right )=m

n\left ( B \right )= n

Total No of function = n^{m}

-

 

 number\: of\: functions=\left ( b\left ( B \right ) \right )^{n\left ( A \right )}

                                                 =3^{4}=81

 


Option 1)

81

Option 2)

64

Option 3)

243

Option 4)

16

Posted by

Himanshu

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