Let A be the matrix and B be the matrix A+B has shape num AB has shape What are the shapes of the following? (if the multiplication is not valid, just type in "-1" and "-1" for the two boxes.) BA has shape ABA has shape A has shape num ? X num ATB has shape num num -64 19 -39 96 -85 -64 -86 41 26 56 -53 40 -20 80 57 -32 -77 -66 96 11 -15 54 -75 15 -38 9 -13 13 -89 53 42 86 44 -37 -37 -50 79 num num 66 50 82 ? ? ? X num X num X num X num X num -32 82 -56 69 65 ?