Home
Class 12
MATHS
Let E={1,2,3,4} and F={1,2} If N is the ...

Let `E={1,2,3,4}` and `F={1,2}` If `N` is the number of onto functions from `E` to `F ,` then the value of `N/2` is

A

14

B

16

C

12

D

8

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Find the number of all onto functions from the set {1,2,3,.......,n} to itself.

The number of onto function from set {1,2,3,4} " to " {3,4,7} is .......

Let n(A)=5 and n(B)=3 then find the number of injective functions and onto functions from A to B .

Let A={1,2,3,4,5} and f:A rarr A be an into function such that f(i) nei, forall i in A , then number of such functions f are

Let A = {1,2,3},B = {4,5,6,7} and let f={(1,4),(2,5),(3,6)} be a function from A to B. Show that f is one - one.

Let S = {a,b,c} and T = {1,2,3} . Find F^(-1) of the following functions F from S to T , if it exists . F = {(a,2),(b,1),(c,1)}

Let S = {a,b,c} and T = {1,2,3} . Find F^(-1) of the following functions F from S to T , if it exists . F = {(a,3),(b,2),(c,1)}

f: [2,oo) rarr y, f(x) = x^(2)-4x +5 is a one and Onto function . If y in[a,oo) then the value of a is .........

If X={1,2,3,4,5} and Y={a,b,c,d,e,f} and f:X rarr Y , find the total number of {:((i)" functions ",(ii)" one to one functions "),((iii)" many-one functions ",(iv)" constant functions "),((v)" onto functions ",(vi)" into functions "):}

Let f:R rarr R and f(x)=(3x^(2)+mx+n)/(x^(2)+1) . If the range of this function is [-4,3], then the value of (m^(2)+n^(2))/(4) is ….