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Matrices

Question

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Let $space equals space open parentheses table row 1 cell negative 1 end cell 1 row 2 1 cell negative 3 end cell row 1 1 1 end table close parentheses space left parenthesis 10 right parenthesis space straight B space equals space open parentheses table row 4 2 2 row cell negative 5 end cell 0 straight alpha row 1 cell negative 2 end cell 3 end table close parentheses$ .If B is the inverse of matrix A, then α is

-2

5

-2

1

Solution

B.

5

Some More Questions From Matrices Chapter

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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