Question

If
A =
[3 2 4]
[2 0 2]
[4 2 3]
write A = Q (lambda) Q^(T) where Q's columns are orthogonal (unit) vectors of A.

Answer 1

is this a matrix as in \[\large \left[\begin{array}{ccc} 3 & 2&4\\ 2&0&2\\ 4&2&3 \end{array} \right]\]

Answer 2

yes!