Question: Verify the boxed statement preceding Example 1. Data from in Example 1 EXAMPLE 1 Use the Invertible Matrix Theorem to decide if A is invertible:

Verify the boxed statement preceding Example 1.



Data from in Example 1


EXAMPLE 1 Use the Invertible Matrix Theorem to decide if A is

EXAMPLE 1 Use the Invertible Matrix Theorem to decide if A is invertible: 1 0-2 -DA A = 3 1 -2 -5 -1 9 A 1 0 0 -1 0-2 1 4 1 0 -2 0 1 4 0 0 3

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