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Matrices

Question

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$Given space straight A equals space open square brackets table row 1 cell space space minus 1 end cell cell space space 1 end cell row cell 1 space space end cell cell space space space space minus 2 space space end cell cell negative 2 end cell row 2 cell space space space space space 1 end cell cell space space 3 end cell end table close square brackets space comma space straight B equals space open square brackets table row cell negative 4 end cell cell space space space 4 end cell cell space space space 4 end cell row cell negative 7 end cell cell space space space 1 end cell cell space space space space 3 end cell row 5 cell space space space space space minus 3 space space space space end cell cell negative 1 end cell end table close square brackets space find space AB space and space use space this space result space in space solving space the space following space system space of space equations space colon space space straight x space – space straight y space plus space straight z space equals space 4 space „ straight y space – space 2 straight y space – space 2 straight z space equals space 9 comma space 2 straight X space plus space straight Y space plus space 3 straight z space equals space 1. space$

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Some More Questions From Matrices Chapter

If a matrix has 8 elements, what arc the possible orders it can have ?

If a matrix has 24 elements, what are the possible orders it can have? What, if it has 13 elements?

If a matrix has 18 elements, what are the possible orders it can have? What, if it has 5 elements?

If a matrix A has 12 elements, what arc the possible orders it can have 7 What if it has 7 elements ?

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