Consider the following matrix. -2 0 1 A = 1 -1 0 -1 -21 Choose the correct description of A. -1 Find A if it exists. A is nonsingular. That is, it has an inverse. A¹ = 0 A is singular. That is, its inverse doesn't exist. olo [000) (000) 1000 000 X 5 ?

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