chapter 1 exercise 1

tamilnadu state board 10th maths chapter 1 exercise 1


problem on cartesian product or cross product of sets





If A ={2,-2,3} B={1,-4} find AxB, AxA ,BxA


In AxB ,the first element is selected from A and
the second element from B.


In AxA both elements are selected from A .

In BxA frst element is selected from B and
second element from A.


AxB={(2,1),(2,-4)(-2,1),(-2,-4),(3,1),(3,-4) }

AxA = {(2,2),(2,-2),(2,3),(-2,2),(-2,-2),(-2,3),(3,2),(3,-2),(3,3)}

BxA={(1,2),(1,-2),(1,3),(-4,2),(-4,-2),(-4,3) }