NCERT Exercise 3.3 Q7 - Matrices
Question: (i) Show that A = [[1, -1, 5], [-1, 2, 1], [5, 1, 3]] is symmetric. (ii) Show that A = [[0, 1, -1], [-1, 0, 1], [1, -1, 0]] is skew-symmetric.
Answer: (i) A' = A; (ii) A' = -A.
Full step-by-step NCERT solution with diagrams on Something by Zero.