Using the same encryption code C, the students friend answered with What was the return message? (See
Question:
Using the same encryption code C, the student’s friend answered with
What was the return message? (See Exercise 43.)
Data from Exercises 43
An avid math student sends an encrypted matrix message E to a friend who has the coding matrix C. The friend can decode E to get message M by multiplying E by C−1. If
what is the message? (0 = space, 1 = A, 2 = B, 3 = C, etc.)
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ANSWER To find the return message we need to multiply the encrypted matrix R by the inverse of the c...View the full answer
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Related Book For 
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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