Yvette encoded a secret phrase using matrix multiplication. Using A = 1, B = 2, C = 3, and so on, she multiplied the clear text
code for each letter by the matrix
to get a matrix that represents the encoded text. The matrix representing the
12 11
encoded text is 48 73
(21 32
decode the text.
114
50
30 136 78 35
. What is the secret phrase? Determine the location of spaces after you
1358 35 15)
FIND THE PRODUCT
FIND THE INVERSE
FINE IS THE PIANO
FINE IS A WARM DAY