2 votes 2 votes If diagonal matrix is commutative with every matrix of same order then it is necessarily 1)scalar matrix 2)unit matrix 3)symmetric matrix 4)zero matrix Pooja Palod asked Aug 9, 2015 Pooja Palod 1.5k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes Scalar.. even Identity & Null are also true but these are just a condition of Scalar matrix where K = 1 and 0 respectively .. Digvijay Pandey answered Aug 9, 2015 Digvijay Pandey comment Share Follow See all 2 Comments See all 2 2 Comments reply Riya Bakshi commented Jul 22, 2017 reply Follow Share answer can be symmetric also bcoz we r getting commutative result??? 0 votes 0 votes Kaluti commented Sep 2, 2017 reply Follow Share yes i think it must be true for symmetric matrix as well 0 votes 0 votes Please log in or register to add a comment.