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 encoded text is what is the secret phrase? determine the location of spaces after you decode the text.
a.-find the product
b.-find the inverse
c.-fine is the piano
d.-fine is a warm day