Question

Let A = {{1,2, 3}, {4,5}, {6, 7, 8}}. Determine
(i) 1ε Α
(ii) {1, 2, 3} CA
(iv) {{4, 5}} CA
(v) φε Α​

Answer 1

$\huge\pink{AnsWer}$

• ii) {1,2,3}CA