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8. , using the method of this section.
9.
10.
11.
12.
Find all values of for which
13.
(a)
(b)
Classify each permutation of {1, 2, 3, 4} as even or odd.
14.
15. matrix.
(a) Use the results in Exercise 14 to construct a formula for the determinant of a
(b) Why do the mnemonics of Figure 2.4.2 fail for a matrix?
Use the formula obtained in Exercise 15 to evaluate
16.
Use the combinatorial definition of the determinant to evaluate
17.
