Write the following as single matrix. [1,-2,3]1 x 3[(2,-1,5),(0,2,4), – InterviewSolution

1.

Write the following as single matrix. [1,-2,3]1 x 3[(2,-1,5),(0,2,4),(-7,5,0)]3 x 3 - [2,-5,7]1 x 3

Answer»

[1,-2,3]₁_{x 3}[(2,-1,5),(0,2,4),(-7,5,0)]_{3 x 3} = [-19,10,-3]_{1 x 3}

[1,-2,3]₁_{x 3}[(2,-1,5),(0,2,4),(-7,5,0)]_{3 x 3} - [2,-5,7]₁_{x 3}

= [-19,10,-3] - [2,-5,7] = [-21,15,-10]

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