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Write the following systems as matrix equations: (a) x + 2xx3 = -7 5x + x + 3x= 2 - 3x + 2x =

Write the following systems as matrix equations: (a) x + 2xx3 = -7 5x + x + 3x= 2 - 3x + 2x = -9 3 (b) x + y + z = 1 /7 x + 2y + z 3 3x+4y+7z=6 Find A', B', (a A)', (AB)' if a=7 and 4 3 -[2]. 21 Now verify your answer using Maple. B 1 0 [49] 1

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