# Consider matrix A. Does the inverse of matrix A exist?

Select answers from the drop-down menus to correctly complete the statements.

dropdown options #1

-all entries are the same sign

-no two entries are equal

-the determinant does not equal zero

drop down #2

-does exist

-does not exist

### 1 Answer

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- AlanLv 71 month agoFavourite answer
drop down one

the determinant does not equal zero

drop down #2

-does not exist

why the determinant = 1*1 - 1*1 = 0

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