20. If \( \mathbf{A} \) is an \( n\times n \) matrix, then \( \| \mathbf{A}\| 1 = \| \mathbf{A}^{\mathrm{T}}\|{\infty} \)
2. Multiple Choice Questions (3% each, 15%)
20. If \( \mathbf{A} \) is an \( n\times n \) matrix, then \( \| \mathbf{A}\| 1 = \| \mathbf{A}^{\mathrm{T}}\|{\infty} \)
2. Multiple Choice Questions (3% each, 15%)