0 votes 0 votes closed as a duplicate of: Eigen Value An orthogonal matrix A has eigen values 1, 2 and 4, then trace of the matrix $A^T$ is ___________ Linear Algebra eigen-value linear-algebra + – Hirak asked May 28, 2019 closed May 29, 2019 by akash.dinkar12 Hirak 491 views comment Share Follow See 1 comment See all 1 1 comment reply ankitgupta.1729 commented May 28, 2019 reply Follow Share https://gateoverflow.in/245133/eigen-value?show=247179 2 votes 2 votes Please log in or register to add a comment.