Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa

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

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2026 session 1 exam from January 21 to 30; registration open soon at jeemain.nta.nic.in
anam-khan

JEE Mains 2026 Registration LIVE: NTA announces exam dates; application forms soon at jeemain.nta.nic.in
anam-khan

JEE Main 2026: Minimum marks to secure top 1000 rank in JEE Advanced; rank vs score trend over 5 years

Latest Question