Question:
A=\(\begin{bmatrix} 2 & -1 \\ 1 & 1 \end{bmatrix}\)if sum of diagonal elements of A13 is 3n then n equal to:
A=\(\begin{bmatrix} 2 & -1 \\ 1 & 1 \end{bmatrix}\)if sum of diagonal elements of A13 is 3n then n equal to:
Updated On: Feb 25, 2026
- 5
- 7
- 9
- 13
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The Correct Option is B
Solution and Explanation
The Correct answer is option is (B) : 7
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