The Fig 2.6 shows a relation between the sets P and Q. Write this relation
(i) in set- builder form,
(ii) in roster form.What is its domain and range?

Explanation

`(3)^2=9`
`(-3)^2=9`
`(2)^2=4 `
(-2)^2=4 `
`(5)^2=25 `
(-5)^2=25`
Let the element of set P can be denoted by x i.e `x in P ` and the elements of set Q can be denoted by y i.e. `y in Q`
Hence , we can say that ` y^2=x implies x=y^2`
Therefore, `R={(x,y):x=y^2,x in P &y in Q}`