Please help me, I dont understand what to put in some of the boxes that appear in the images

autosave#question3706295_8 9 -/1 POINTS LARLINALG8 2.1.077. 0/5 Submissions Used Let A and B be n x n matrices. Show that if the ith row of A has all zero entries, then the ith row of AB will have all zero entries. Let A = [ajj] and B = [bij] be two diagonal n x n matrices. Then the ijth entry of the product AB is Guj = If the ith row of A has all zero entries, evaluate the entries aik for all k = 1, 2, . . ., n. aik = Evaluate the entries cjj for all j = 1, 2, . . ., n. Cij = Thus, if the ith row of A has all zero entries, then the ith row of AB has all zero entries. Give an example using 2 x 2 matrices to show that the converse is not true. B = Need Help? Read It Talk to a Tutor P Unidad 5 coc.. TGeneral (QUI.. Presentacion.. EPSON O Operaciones .. Descargas W Heroe del cur.. X1.019. 0/5 Submissions Used Find, if possible, AB and BA. (If not possible, enter IMPOSSIBLE in any single cell.) 2 -1 0 A = 3 B = 4 0 2 5 8 7 (a) AB (b) BA 4 -3 10 14 27 40 Need Help? Read It Talk to a Tutor