Q. 273.5( 2 Votes )

Let A = {1, 2, 3,

Answer :


(I)A function is onto function or surjection if

Range (f)=co-domain(f)

(II)if A and B are two non-empty finite sets containing m and n

(i) Number of function from A to B = nm

(ii) Number of one–one function from A to B

(iii) Number of one-one and onto function from A to B

(iv) Number of onto function from A to B=


(i)A = {1, 2, 3, 4}=4

(ii)B = {a, b}=2

Using formula (iv)

Number of onto function from A to B=

Where m=4,n=2


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

| Let * be a binaMathematics - Board Papers

Find the idMathematics - Board Papers

Let f : A Mathematics - Exemplar

Show that the binMathematics - Board Papers

Determine whetherRD Sharma - Volume 1

Fill in theMathematics - Exemplar