InterviewSolution
Saved Bookmarks
| 1. |
Consider the determinant Delta=|[0,2,6],[1,5,0],[3,7,1]|Write the co-factors of the elements in the first column. Hence, evaluate Delta |
|
Answer» SOLUTION :The co-factors are GIVEN below: `A_11=(-1)^(1+1)M_11=1xx5=5,` `A_21=(-1)^(2+1)M_21` `=-1xx-40=40` `A_31=(-1)^(3+1)M_31` `=1xx-30=30` `thereforeDelta=0xx5+1xx40+3xx-30` `=0+40-90=-50` |
|