00:01
In problem 66, we have to decode the given message that is 59, 141, 43, 101, 721, 29, 101, 721, 29, and 87.
00:56
Now we can write this message in the form of a matrix with 2 rows.
01:06
That is 59, 141, 43, 101, 721, 721, 29, 59, and 459, 41 and 87.
01:42
Now to decode the given message, we might apply this matrix with the inverse of the given matrix a.
01:57
That is the given matrix a is 1, 3, 4.
02:03
Now we find its inverse...