Books on linear models and multivariate analysis generally include a chapter on matrix algebra, quite rightly so, as matrix results are used in the discussion of statistical methods in these areas.
https://doi.org/10.4169/amer.math.monthly.122.8.782 https://www.jstor.org/stable/10.4169/amer.math.monthly.122.8.782 Using the fact that the normalized matrix trace ...
NCERT Solutions for CBSE Class 12th Mathematics, Chapter 3: Matrices are available here. In this article, you will find solutions of exercise 3.3 (from question number 1 to question number 6). These ...