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8.2 A number of matrices are defined as [A]=415526[B]=412320764{C}=261[D]=[52413775][E]=174510636[F]=[210714]G=864 (a) What are the dimensions of the matrices? (b) Identify the square, column, and row matrices. (c) What are the values of the elements: a12,b23,d32,e22, f12,g12? (d) Perform the following operations: 1. 7[B] 2. [I][B], where [I] is an identity matrix of same dimension as [B] 3. [E]T[E], where superscript T means transpose matrix