Question

3) For each of the following sets, state with reasons whether it is empty set or not:
(1) A = {X/X € 1,x2 is not a positive)
ii) B = {b/b € N, 2b + 1 is even)​

Answer 1

Step-by-step explanation:

developing country is a country with a less developed industrial base and a low Human Development Index relative to other countries. However, this definition is not universally agreed upon. There is also no clear agreement on which countries fit this category. Wikipedia