1. Example `[[8,-6,2],[-6,7,-4],[2,-4,3]]`
Find Matrix Rank ... `[[8,-6,2],[-6,7,-4],[2,-4,3]]`Solution: Rank | | `8` | `-6` | `2` | | | `-6` | `7` | `-4` | | | `2` | `-4` | `3` | |
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Now, reduce this matrix `R_2 larr R_2+3/4xx R_1` = | | `8` | `-6` | `2` | | | `0` | `5/2` | `-5/2` | | | `2` | `-4` | `3` | |
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`R_3 larr R_3-1/4xx R_1` = | | `8` | `-6` | `2` | | | `0` | `5/2` | `-5/2` | | | `0` | `-5/2` | `5/2` | |
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`R_3 larr R_3+ R_2` = | | `8` | `-6` | `2` | | | `0` | `5/2` | `-5/2` | | | `0` | `0` | `0` | |
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The rank of a matrix is the number of non all-zeros rows `:. Rank = 2`
This material is intended as a summary. Use your textbook for detail explanation. Any bug, improvement, feedback then
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