Find the determinant for the given matrix A in two ways, by using cofactor expansion along the indicated row or column. 35 A = eBook 06 40-10 1 1 -6 1 -60 40 (a) along the second row det(A) = (b) along the second column det(A) = Use the determinant to decide if T(x) = A(x) is invertible. Since det(A) --?--0, A--?--invertible, and hence T--?-- invertible.

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