Principal of mathematical induction : + +......+n(n+1)(n+2)=(n(n+1)(n+2)(n+3))/(4) send your doubt WhatsApp +917319907572 Telegram for more queries you can contact theteachtalk@ for more doubts and questions and their solution, please follow on instagram About me: Hi, I'm Shashi. Maths teacher. Post graduate in Mathematics from L. s. College, muzaffarpur Bihar. Mathematics faculty in Siksha Vatika, IIT institue in Samastipur. #math #mathproblems #class #olympiad #ncert #pearson #brainmapping #ganit #class10 #class11maths #class12maths Playlist of mathematical induction Playlist of algebra Playlist of pi Playlist of inequality Playlist of Oluympiad Playlist of trigonometry Playlist of Geometry Playlist of Coordinate geometry Playlist of Important Sequence Thanku. #mathsworld #focus4maths #Lscollege