Consider 3 bases in R2: (standard basis) B = {[],[]} = {[0]; [11 B:{[ 23 ] [ 13" } }, and C which is unknown but it's given that [ilc *] and [1]. = (-1) (vectors and are given "relative to C"). Find the change of coordinates matrix from C to B. PB-C Consider 3 bases in R2: (standard basis) B = {[],[]} = {[0]; [11 B:{[ 23 ] [ 13" } }, and C which is unknown but it's given that [ilc *] and [1]. = (-1) (vectors and are given "relative to C"). Find the change of coordinates matrix from C to B. PB-C