MCQOPTIONS
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| 1. |
\[{{(-A)}^{-1}}\] is always equal to (where A is nth-order square matrix) |
| A. | \[{{(-1)}^{n}}{{A}^{-1}}\] |
| B. | \[-{{A}^{-1}}\] |
| C. | \[{{(-1)}^{n-1}}{{A}^{-1}}\] |
| D. | none of these |
| Answer» C. \[{{(-1)}^{n-1}}{{A}^{-1}}\] | |