Chapter:1.RELATION

Exercise:1A

Question:1

Findthedomaina

Solution:

dom(R)={-1,1,-2,2}andrange(R)={1,4}

Question:2

LetR={(a,a

Solution:

range(R)={827}

Question:3

LetR={(a,a

Solution:

(i)R={(2,8),(3,27),(5,125),(7,343)}

(ii)dom(R)={2,3,5,7}

(iii)range(R)={8,27,125,343}

Question:4

LetR=(x,y):

Solution:

{3,2,1}

Question:5

LetR={(a,b):a

Solution:

dom(R)={3,6,9}andrange(R)={3,2,1}

Question:6

LetR={(a,b):

Solution:

dom(R)={-2,-1,0,1,2}andrange(R)={3,2,1,0}

Question:7

Let

Question:8

LetR={(a,b):

Solution:

dom(R)={1,2,3}andrange(R)={6,7,8}

Question:9

LetSbetheset