NCERT Exercise 4.1 Q8 - Determinants

Question: If |[[x,2],[18,x]]|=|[[6,2],[18,6]]|, then x equals (A) 6 (B) �6 (C) -6 (D) 0.

Answer: (B) �6.

Full step-by-step NCERT solution with diagrams on Something by Zero.