Count of 3×3 Matrices with Trace of AAᵀ = 3 | Matrices | JEE Maths PYQ | Doubtify JEE
🔢 Matrices & Determinants | JEE Maths | Doubtify JEE 📌 Question: The number of all 3 × 3 matrices A , with entries from the set {-1, 0, 1} , such that the sum of the diagonal elements of AAᵀ is 3 , is: 🖼️ Question Image: