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A = 7 -4 -1 11 -6 -2 6 -4 0 So I need to find the exponential of this matrix. The characteristic polynomial of A is s^3 -s^2 so the eigenvalues are 0 (double) and 1 but when I try to do P A P^-1, I can't find the inverse because P will end up being singular. Am I missing...