For Exercises 23-32, evaluate the determinant of the matrix state whether the matrix is invertible. (See Example 3-5)
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- Find the determinants in Exercises 35-40, assuming thatarrow_forwardIn a previous section, we showed that matrix multiplication is not commutative, that is, ABBA in most cases. Can you explain why matrix multiplication is commutative for matrix inverses, that is, A1A=AA1 ?arrow_forwardThe determinant of a 22 matrix involves two products. The determinant of a 33 matrix involves six triple products. Show that the determinant of a 44 matrix involves 24 quadruple products.arrow_forward
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