MCQ
$\operatorname{adj} A B-(\operatorname{adj} B)(\operatorname{adj} A)=$
- A$\operatorname{adj} A-\operatorname{adj} B$
- BI
- ✓O
- Dnone of these
✓
Answer
Correct option: C.
O
(C) $\operatorname{adj} A B-(\operatorname{adj} B)(\operatorname{adj} A)$
$=(\operatorname{adj} B)(\operatorname{adj} A)-(\operatorname{adj} B)(\operatorname{adj} A)$
...[Using Shortcut 4(xvi)]
$= O$
$=(\operatorname{adj} B)(\operatorname{adj} A)-(\operatorname{adj} B)(\operatorname{adj} A)$
...[Using Shortcut 4(xvi)]
$= O$
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