Class 12 Determinants · Mcq Single Correct1 Marksadjugate
Class 12 Maths · Determinants · Mcq Single Correct #13
For A=\(\begin{bmatrix}2 & 5\\-11 & 7\end{bmatrix}\), find (adj A)ᵀ.
✅ Step-by-Step Solution
Final Answer: Option (C): \(\begin{bmatrix}7 & 11\\-5 & 2\end{bmatrix}\)
- The cofactor matrix is [[7,11],[−5,2]]. Since adj A is its transpose, (adj A)ᵀ is the cofactor matrix itself.
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