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# Sudoku is a popular puzzle involving matrices. In this puzzle, one is given some of the ISBN: 9780136009290 436

## Solution for problem 25 Chapter 7.4

Linear Algebra with Applications | 8th Edition

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Problem 25

Sudoku is a popular puzzle involving matrices. In this puzzle, one is given some of the entries of a 9 9 matrix A and asked to fill in the missing entries. The matrix A has block structure A = A11 A12 A13 A21 A22 A23 A31 A32 A33 where each submatrix Ai j is 3 3. The rules of the puzzle are that each row, each column, and each of the submatrices of A must be made up of all of the integers 1 through 9. We will refer to such a matrix as a sudoku matrix. Show that if A is a sudoku matrix, then = 45 is its dominant eigenvalue. 2

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Stat notes week 13 Confidence intervals for the mean and proportions Suppose X is a random variable with known standard deviation...

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##### ISBN: 9780136009290

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