0 votes 0 votes The value of $x$ for which all the eigen-values of the matrix given below are real is $$\begin{bmatrix} 10&5+j &4 \\ x&20 &2 \\4 &2 &-10 \end{bmatrix}$$ $5+j$ $5-j$ $1-5j$ $1+5j$ Linear Algebra gate2015-ec-2 linear-algebra matrices eigen-values + – Milicevic3306 asked Mar 27, 2018 • retagged Feb 27, 2021 by Lakshman Bhaiya Milicevic3306 16.0k points 124 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.