Which of the following is the 2×2 Identity Matrix?, , , , Which of the following is the 3×3 Identity Matrix?, , , , The matrix below is:, Non-singular, Singular, Identity, The matrix below is:, Non-singular, Singular, Zero matrix , What is the determinant of this matrix?, 10, 12, 8, The inverse of this matrix is:, , , Does not exist , Find the cofactor of element a11 in:, -24, 24, 0, What is the sign of the cofactor for element a12, positive , negative , zero, If the determinant is zero, the inverse:, Exists, Does not exist , is zero , To find the 3×3 inverse, we need:, Determinant only , Cofactor matrix and determinant, Row adittion, If AX = B, then X equals:, AB, A-1B, B-1A, We can solve a system using inverse if the matrix is:, Singular , Square and non-singular , A zero matrix .

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