Question

write the following in set builder form A= (5,12,31,68)​

Answer 1

Answer:

A = { x | x = a+1 ; a = (4, 11, 30, 67)}

Step-by-step explanation:

Checking:-

x = a+1

a = (4, 11, 30, 67)

When a = 4,

x = 4+1 = 5

When a = 11,

x = 11+1 = 12

When a = 30,

x = 30+1 = 31

When a = 67,

x = 67+1 = 68

Therefore, A = {5, 12, 31, 68}

Hence, proved.