H is normal if and only if xHx^-1=H | normal subgroup | coset | group theory | ravina tutorial

Hi Everyone !!! My name is Ravina , welcome to "Ravina Tutorial". Here you will find video lectures related to Bsc/Msc (Higher Mathematics).These video lectures are concept oriented & explained in very simple language. I feel after watching these videos you will clear most of the doubts(sometimes I also creat doubt :). In this playlist we are studying an important concept in group theory called as cosets. and this video is about H is normal if and only if xHx^-1=H, H is normal iff every right coset is left coset. Playlist: https://youtube.com/playlist?list=PLlj41Lsfa1mbtf9jmk1utaJ2Fj3SVMjSl Hamesha Ki Tarah Thanks For Watching #ravinatutorial