00:58 Binary relation is a subset of the Cartesian product of two sets 01:56 The relation R is defined as the set of ordered pairs where the elements are equal to each other. 02:54 Relation R is created with ordered pairs where the first element is equal to the second element. 03:52 Relation R represents a mapping from a set A to itself. 04:50 The relation R consists of ordered pairs where the first element divides the second element. 05:48 The number of relations on a set with n elements can be found by listing down all the subsets of A x A. 06:46 The number of relations on a set A with n elements is equal to 2 to the power n square. 07:39 The number of relations on a set A with n elements is 2 to the power n square.
Thank you Sir. I watched this video a while back to understand relations, now I am watching this again to revise before an exam.
Sir, please Complete Data Structures π I have started studying from the playlist and its important from my semester point of view
this channel makes concepts easy in a very short video
Let A={1,2,3,4} and let R be the releation on A defined by xRy if and onlyif " x divides y" written x/y. 1) write down R as a set of ordered pairs. 2) draw digraph of R. 3) determine the indegree and outdegree vertices of digraph. Solve this problem please send me answer
thank u this helped for my finals!!!π
Thanks I was confused and now I understand
Can u pl explain the purpose of math in this world cuz we don't need these super hard lessons In life ( THE WORLD IS STUPID AS A GOAT)
Thank you Very much Sir Your Videos are very helpful Great explanation Sir
Thank you To be honest the last part really wasn't so easy to understand, but I mixed it with a bit of Google and I'm good to go now.
If I am not mistaken, in my university we defined a relation specifically as a non-empty subset of AxB. I wonder why this is? I cannot find this definition elsewhere.
Well understood. Thank you very much. Never saw graphical representation of relations before. You've cleared my doubt. But why is 5 not mapped to 6 also rather just to itself?
i have really enjoyed this lecture, thank u sir
You are such an excellent teacher, keep up the good work!
My college professor included the screenshots of this video in ppt of notes, I came here by seeing thatπ
Wow what a great teaching
Sir could u plz explain about the Newtown- Raphson method π... There is an exam on this topic
Thanks for Easy explaination of this topic
thank you so much
@NSA.