Question

Let U = {1,2,3,4,5,6,7}
A = { x : x is a prime number < 7} and B = { 1, 2, 3, 6 }
i) Write A in Roster form
ii) Verify ( A U B )' = A'n B'

Answer 1

Step-by-step explanation:

1) A={1,2,3,5}

2). (A U B)={1,2,3,5,6}

(A U B)'={4} ----------->©

A'={4,6,7}

B'={4,5,7}

A' n B'={4} ----------->®

here,

©=®

therefore, it is verified