Question

PLEASE ANSWER THIS CORRECTLY
NO SPAM​

Answer 1

Given :  A =  x is prime number and less that 20

B = 2x + 1  , x is whole number and x < 9

To Find : A U B

A ∩ B

A  - B

B - A

Solution:

x is prime number and less that 20

A = { 2  , 3 , 5 , 7 , 11 , 13 , 17 , 19 }

2x + 1  , x is whole number and x < 9

x =[0 , 8 ]

2x + 1    =  1 , 3 , 5 , 7 , 9 , 11 , 13 , 15 , 17

B = {  1 , 3 , 5 , 7 , 9 , 11 , 13 , 15 , 17 }

A U B =  {  1 , 2 , 3 , 5 , 7 , 9 , 11 , 13 , 15 , 17 , 19  }

A ∩ B =  {   2 , 3 , 5 , 7 , 11 , 13  , 17 }

A  - B = { 2  ,  19 }

B - A =  {  1 , , 9 ,  15  ,   }

Learn More:

A={x:x is a prime factor of 210}B={x:x ≤10 and x € N, show that ...

brainly.in/question/13361272

If A represents the Natural numbers less than 20 and B represents ...

brainly.in/question/18949284