The message 32 47 22 26 20 30 27 40 43 62 4 6 43 57 4 4 was encoded with matrix A. Decode the message. 1 2 -[33] A = 13 The message is

Multiply the matrix

Determine if the pairs of matrices A and Bare similar. (5 1) B =| 2 1 (3 2) a) A= 4 5) 103 2 3 0 b) A=| 2 1 3 B = 4 1 2 3 0 1 0 2 2)

Encode the message "THE EAGLE HAS LANDED" using the 5x5 encoding matrix C given below. Form a matrix with 5 rows and as many columns as necessary to accommodate the message. The letters A-Z are assigned to the numbers 1-26 and 0 is assigned the blank or space character "". 01103 10101 C 2 1 1 1 1 00102 11 12 1 Represent the message as an array of numbers where columns are filled from top to bottom and where entries that do not correspond to message characters are set to 0. 0 (Type an integer or simplified fraction for each matrix element.)

Find a matrix A such that 6 4 A A ГОТ = 13 5 4 8-4 A