Class 12 Determinants · Conceptual Answer1 Marksadjugate
Class 12 Maths · Determinants · Conceptual Answer #43
A is 3×3 with det(A)=9. Find det(2adj A).
✅ Step-by-Step Solution
Final Answer: 648
- det(2adj A)=2³det(adj A)=8det(A)²=8·81=648.
- 648
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] det(2adj A)=2³det(adj A)=8det(A)²=8·81=648.
- [0.5 marks] 648
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