Question: PLEASE HELP ME WITH THIS WHOLE ALGEBRA ACTIVITY Activity 2 (Design your own substitution cipher) (a) Use the criteria indicated to create a pair of

PLEASE HELP ME WITH THIS WHOLE ALGEBRA ACTIVITY

Activity 2 (Design your own substitution cipher) (a) Use the criteria indicated to create a pair of 3 x 3 matrices ( D & D ' ) , where the entries of the matrix D are all integers. ( 6 marks ) (i) d21 = 5 (ii) d3.2 = - 2 (b) Create your own substitution cipher. Then use it and the matrix D you created in (a) to encrypt the title of your favourite movie. ( 6 marks ) (c) Use the matrix D" and the appropriate substitution cipher to decrypt the message from (b). ( 6 marks )

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