You decompose a 3×3 matrix A into a lower triangular matrix L and upper triangular matrix U such that A=LU . You have l11=2,l22=5,l33=6,u11=3,u22=7,u33=1 . Here, lij denotes the i, j element of L and uij denotes the i, j element of U . What is the determinant of A ?

n

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answer: i wpould go with c

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twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

2 pecks

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