2. Example `[[3,2,4],[2,0,2],[4,2,3]]` (Previous example) | 4. Example `[[3,0,0,3,0],[-3,0,-2,0,0],[0,-1,0,0,-3],[0,0,0,3,3],[0,-1,2,0,1]]` (Next example) |
3. Example `[[1,0,4,2],[1,2,6,2],[2,0,8,8],[2,1,9,4]]`
Find Determinant by gaussian elimination ... `[[1,0,4,2],[1,2,6,2],[2,0,8,8],[2,1,9,4]]`Solution:Row echelon form Given matrix | | `1` | `0` | `4` | `2` | | | `1` | `2` | `6` | `2` | | | `2` | `0` | `8` | `8` | | | `2` | `1` | `9` | `4` | |
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`R_2 larr R_2- R_1` = | | `1` | `0` | `4` | `2` | | | `0` | `2` | `2` | `0` | | | `2` | `0` | `8` | `8` | | | `2` | `1` | `9` | `4` | |
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`R_3 larr R_3-2xx R_1` = | | `1` | `0` | `4` | `2` | | | `0` | `2` | `2` | `0` | | | `0` | `0` | `0` | `4` | | | `2` | `1` | `9` | `4` | |
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`R_4 larr R_4-2xx R_1` = | | `1` | `0` | `4` | `2` | | | `0` | `2` | `2` | `0` | | | `0` | `0` | `0` | `4` | | | `0` | `1` | `1` | `0` | |
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`R_4 larr R_4-1/2xx R_2` = | | `1` | `0` | `4` | `2` | | | `0` | `2` | `2` | `0` | | | `0` | `0` | `0` | `4` | | | `0` | `0` | `0` | `0` | |
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`=1*2*0*0` `=0`
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2. Example `[[3,2,4],[2,0,2],[4,2,3]]` (Previous example) | 4. Example `[[3,0,0,3,0],[-3,0,-2,0,0],[0,-1,0,0,-3],[0,0,0,3,3],[0,-1,2,0,1]]` (Next example) |
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