Question

On the real axis if A =[1,5] and B=[3,9] then A-B =

Answer 1

Given: The set A = [1,5] and B= [3,9]

To find: The value of A - B?

Solution:

• Now we have given the sets as:

                A = [ 1 , 5 ] and B = [ 3 , 9 ]

• So A - B will be:

                A - B = [1 , 2 , 3 , 4 , 5 ] - [ 3 , 4 , 5 , 6 , 7 , 8 , 9 ]

• Now the common elements are: 3 , 4 and 5, so removing common elements from A, we get:

                A - B = [ 1 , 2 ]

Answer:

            So the value of A - B is [ 1 , 2 ].