Question

a ={1,2,3,4},b={3,4,5,6} then B-A is​

Answer 1

Answer:

Step-by-step explanation:

b-a={3-1,4-2,5-3,6-4}

b-a={2,2,2,2}

b-a=2

Answer 2

Answer:

3 4 5 6

-1 2 3 4

=2222

so, the answer is 2