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Mathematics, 16.12.2019 16:31 xojade

Given the matrix: a = $\left[\begin{array}{ccc}-3& ; -5\\7& 4\\\end{array}\right]$

b = $\left[\begin{array}{ccc}-6& ; 2\\7& 5\\\end{array}\right]$

c= $\left[\begin{array}{ccc}-7& ; 5\\6& -9\\\end{array}\right]$

calculate:

a) a-¹

b) (a-¹)t

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