Class 12 Determinants · Mcq Single Correct1 Marksdeterminant_scaling
Class 12 Maths · Determinants · Mcq Single Correct #18
For a 2×2 matrix A with det(A)=2, find det(4A⁻¹).
✅ Step-by-Step Solution
Final Answer: Option (C): 8
- det(4A⁻¹)=4²det(A⁻¹)=16/det(A)=8.
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