Sets, Relations and Functions (Part-2)
SETS Lesson 1 How are you, my dear friends? I hope all of you are doing well. With the class 12 pre-board exam coming up- and their joint Entrance examination preparation-most of my day is spent with my students. Preparing mock test papers, checking answer scripts, explaining their mistakes, and so on have kept me quite busy. As a result, my blog post got a little delayed. But as the saying goes, better late than never! The second part of set theory is Here. In the last post we have discussed-what is set, different types of sets like finite set and infinite sets, null set, singleton set and equal sets. Now we will discuss about Subsets, power set and Universal set. This is all about discussions in lesson 1. Subsets: If two sets `A` and `B` are such that every element of `A` is also an element of `B`, then `A` is called a subset of `B`. We write `A\subseteqB`. If the set `A` is a subset of `B`, then `b` is called supper set of `A` and we write `A\supseteq ...