 Hi and welcome to the session. I'm Priyanka and I'm going to help you with the following question. It says if U is equal to the elements A, B, C, D, E, F, G, H, find the complement of the following sets A whose elements are A, B, C, B whose elements are D, E, F, G, C whose element are A, C, E, G, and D whose elements are F, G, H, A. Now here we need to find the complement of these four parts by taking our universal set as A, B, C, D, E, F, G, H. Right. So let us proceed on with our solution. It will be very comfortable for us if we'll draw a table. This will be set and this will be the complement of the set. Now the set is given to us as A, B, C. So its complement will be what? All the elements which are present in the universal set but are not a part of set A. So except these three we can write D, E, F, G and H to be the elements of the complement of set A. Similarly for the second part we need to find the complement of B. The elements of B are D, E, F, G. So the elements of B complement will be A, B, C and then we cannot have till G and then H is remaining which is not a part of set B. So it will be in the end H. Similarly proceeding on set C's elements are A, C, E, G. So C complement will be B, D, F and H because these are the elements which are not present in set C but are a part of the universal set. Proceeding on with the last and final part the elements of set D are given to us as F, G, H, A. So the elements of D complement will be B, C, D and E isn't it? So this completes the entire question that was given to us. I hope you enjoyed this session and now know that complement of a set means all the elements which are not present in the set becomes a part of the set who is the complement of the original set. Right? Bye for now.