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If A is a 3 x 3 matrix with |A| = 4, compute the determinant

The set of vectors {(1, 0, 0), (0, 1, 0), (0, 0, 1)} is a basis for .

Which of the following matrices is in reduced echelon form?  

The vector (8, 0, 5) is a linear combination of (1, 2, 3), (0, 1, 4), and (2, 1, -1).

Which of the following vectors does NOT represent a subspace of ?

Consider the series  

Consider the power series  

Which of the following compounds does not have a 5-degree of unsaturation?    

What is the major organic product obtained from the following reaction?      

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