Acocneratend l0aign an s0 o01 200a cerufied institute linear ale 2 let m,n,r be natura numbers. let a be an mxn matrix with real entries such that (aa=i, where

ACOCNERATEND L0aiGn An s0 o01 200a Cerufied Institute Linear AlE 2 Let m,n,r be natura numbers. Let A be an mxn matrix with real entries such that (AA=I, where I is the mxmidentity mxmidentity matrix and A is the transpose of the matrix A. We can conclude that (a) mn =n (b) AA'1S 1invertible (c)A'A is invertible If m =n, then A is invertible (d) 86