Mathematics, 13.09.2019 17:30 lindseybug

(6 ) 0 a general 2 x 2 diagonal matrix has the form thus the two unknown o b real numbers a and b are needed to specify each 2 x 2 diagonal matrix. how many unknown real numbers are needed to specify each of the given matrices:
a) an upper triangular 2×2 matrix?
b) an m×n matrix?
c) a symmetric n×n matrix?

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