Question

Identify the type of set :-
B = {x/x2- 9=0,x€z}​

Answer 1

Step-by-step explanation:

To find: Write the following in roster form { x:x is and integer x²-9=0}?

Solution :

Roster form of a set is a list of elements that are in the set.

The set we have given is

S = {x : x is and integer x² – 9 = 0}

Now to get elements we solve the

equation,

x² - 9 = 0

x² 9

x = ±√9

X = £3

The roaster form is {-3, 3}