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Let x = {1,2,3,4,5} and Y = {1,3,5,7,9}....

Let x = {1,2,3,4,5} and Y = {1,3,5,7,9}. Which of the following is /are relations from X to Y ?

A

`R_1 = {(x,y): y = 2+x,x in X , y in Y}`

B

`R_2={(1,1),(2,1),(3,,3),(4,3),(5,5)}`

C

`R_3 = {(1,1),(1,3),(3,5),(3,7),(5,7)}`

D

`R_4 = {(1,3),(2,5),(2,4),(7,9)}`

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The correct Answer is:
A, B, C
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