Matrix Multiplication and Addition with Identity and Zero Matrices

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Discussion Overview

The discussion revolves around matrix multiplication and addition involving identity and zero matrices, specifically addressing a problem posed by a participant regarding the operations with given matrices K and L, and an undefined matrix M.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant presents matrices K and L and requests assistance with specific operations, including KL, LK, KI, and O + M.
  • Another participant questions the clarity of the problem and whether the original poster understands how to multiply matrices.
  • A third participant inquires about the definition of matrix M in the context of the addition operation mentioned.
  • A later reply suggests that since matrix M is not defined, the addition operation O + M cannot be performed.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the undefined matrix M, and there is no consensus on how to proceed with the operations involving it.

fazal
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matrix K =
1 3 0
2 1 2

and
Matrix L=
1 3
-1 2

i3 the 3x3 identity matrix, & O the 2x2 zero matrix,
find the following where possible.
1)KL 2)LK c)KI d)O + M


plse assist
 
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What exactly is the problem? Do you know how to multiply matrices?
 


I wonder, how is the matrix M defined in the variant "d"?
 


It's not, that's why it says if possible. Since M wasn't listed, it's not possible :)
 

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