1 1 vote If $A = \begin{bmatrix} 10 & 2k +5 \\ 3k - 3 & k +5 \end{bmatrix}$ is a symmetric matrix, the value of $k$ is __________________. $8$ $5$ $-0.4$ $\frac{1 + \sqrt{1561}}{12}$ Linear Algebra gateme-2022-set1 linear-algebra numerical-answers + – ♦Arjun 405 views answer comment Share Follow Add Sync Questions 0 reply Please log in or register to add a comment.