Question: Consider a 3 x 2 hill Cipher matrix A = [ [ 2 , 1 , 5 ] , [ 7 , 4 , 3

Consider a 3x2 hill Cipher matrix A =
[
[
2
,
1
,
5
]
,
[
7
,
4
,
3
]
,
[
1
,
0
,
2
]
]
.
Encrypt the plaintext "ATTACK" using matrix multiplication.

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