{'1 pt] Suppose A.B,C,D,E are all square matrices of the same size. Show that if ABC DE is invertible. then G is invertible. Proof: SinceABCDEisimerblathan .Since d3t(ABCDE) 2 ,thus g .There'l'ore .HencaCis invertible. QED. A.{1313(C)= B.{1313( 1){1313(B) {1313(0) {1313(D) {1313(E) 75 [1 c.{l3t(C) 75 [l D- {1313( 1){1313(B) {1313(C) {1313(D) {1313(E) E. {131( 43303013}: 0 F. {1313(A) {1313(3) {1313(0) {1313(D) {1313(E) = [1 G.{1313(ABCDE) 75 [1