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u—a Find the determinant for the given matrix A in two ways, by using cofactor expansion along the indicated row or column. Use the determinant to decide if T(x) = A(x) is invertible. —1 1 —l 2 0 3 2 D 1 E D 1 0 -1 3 -1 (a) along the second row dew = E (b) along the first column dew = Z Use the determinant to decide if T(x) = A(x) is invertible. Since det(A) invertible, and hence T

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