Saved Bookmarks
| 1. |
If A = [[1,2],[4,2]] then show that |2A|= 4|A| |
|
Answer» SOLUTION : `|A| = |[1,2],[4,2]| =2-8 = -6 2A = 2|[1,2],[4,2]| = |[2,4],[8,4]|,|2A|= |[2,4],[8,4]| = 8-32 = -24 = 4xx-6 = 4|A|` |
|