Question

If A=a,b,c,d ;B=p,q,r,s which of the following relation is a function from A to B​

Answer 1

Step-by-step explanation:

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11th

Maths

Relations and Functions

Introduction to Relations

If A = (a, b, c, d), B = (p.qrs)

If A = (a, b, c, d), B= (p, q, r, s). then which of the following are relations from A to B? Give reasons for your answer:

This question has multiple correct options

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ANSWER

(A) .(C)

If R is a relation from A to B, then R ⊂(A×B) which consists of all ordered pairs of the type. (x, y) such that x∈A,y∈B.

Clearly, R

1

and R

3

are such sets of A×B. The elements (q, b), of R

2

∈(B×A)and not A×B and the elements (q, b), and (s, b), of R

4

also not belong to A×B and as such R

2

and R

4

are not relations from A to B.