Question

Q 2,3,4 please answer

Answer 1

Answer:

Step-by-step explanation:

2]take an example and do and the answer is 6 becuase a is sunset of b therefore the elemnts in b will be the answer

3]delta =a-b union  b-a

a-b=1234

b-a=567

union-1234567

4]formula is 2^n

n=5

;2^5=32

answer is 32