Question

Let A= {x : xs a positive prime less than l0 } and .
B- {x:x x belong to N and 0<x-2≤6} Then find:
a) A-B
b) B-A​

Answer 1

Step-by-step explanation:

A= { 2,3,5,7}

N = x-2

if x= 1

1- 2 = -1

if x= 2

2-2 = 0

if x= 3

3-2 = 1

if x=4

4-2 = 2

if x=5

5-2=3

if x= 6

6-2= 4

B= { -1,0,1,2,3,4}

a) A-B = { 5,7 }

b) B- A = { -1,0,1,4 }