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1 EXERCISE 5.2 1. Evaluate the following determinants:

 EXERCISE 5.2

 1. Evaluate the following determinants:

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 2. Determine the signs to be attached to the relevant minors in order to get the following cofactors of a determinant: (C13l, IC23i, (C3sl. Canl, and Cu).

 6. Find the minors and cofactors of the third row, given

image.png

 EXERCISE 5.3

 4. Test whether the following matrices are nonsingular:

image.png

 EXERCISE 5.4

 4. Find the inverse of each of the following matrices:

image.png

 6. Solve the system Ax=d by matrix inversion, where

image.png

 EXERCISE 5.5

 1. Use Cramer's rule to solve the following equation systems:

image.png

 3. Use Cramer's rule to solve the following equation systems:

image.png

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