June 2019
Beginner
553 pages
17h 41m
English
4. Hint: If A has an factorization, can you find a diagonal matrix such that
6. Hint: If and the diagonal entries of D are all 1 or −1, show that .
7. Hint: Show that the eigenspace corresponding to the eigenvalue a has dimension 1.
8. Hint: If A has distinct eigenvalues then it is diagonalizable. If A has multiple eigenvalues then it may or may not be defective depending on the dimensions on the eigenspaces.
9. Hint: Make use of the Rank-Nullity theorem.
11. Hint: Is it possible for a matrix with real entries to have a complex eigen-value whose corresponding eigenvector has real entries? Show that if x and y were linearly dependent, then the vectors and would have to be linearly dependent.
13. Hint: Make ...
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