Question

Prove that S = {3,8,9,12 ........................} is an infinite set

Answer 1

Answer:

If a set is not finite, it is called an infinite set because the number of elements in that set is not countable and also we cannot represent it in Roster form. Thus, infinite sets are also known as uncountable sets.

S={3,6,9,12,........} is an infinite set

Because there are infinite multiples of 3.