GROUP THEORY,PART-13,IN BENGALI(SUBGROUP,PROPER & IMPROPER SUBGROUPS)

Group Theory.Subgroup,Trivial Subgroup,Proper Subgroup,Improper Subgroup.Theorems on Subgroup. By Sorforaj Nowaj(S.N.Sir) My Instagram-https://www.instagram.com/sorforajnow... My Facebook -   / sorforaj.nowaj   Playlist of How to learn Mathematics:-    • HOW TO LEARN MATHEMATICS   Playlist of Group Theory-   • GROUP THEORY IN BENGALI   Playlist of Real Analysis-   • REAL ANALYSIS IN BENGALI   Playlist of Linear Programming Problem-   • LINEAR PROGRAMMING PROBLEM IN BENGALI   Playlist of MCQs of Abstract Algebra-   • MCQs ON LINEAR ALGEBRA   Playlist of Linear Algebra-   • LINEAR ALGEBRA IN BENGALI   Playlist of Probability theory:-   • PROBABILITY THEORY IN BENGALI   Playlist of O.D.E:-   • ORDINARY DIFFERENTIAL EQUATION