Class 12 Matrices · Conceptual Answer1 Markscounting_matrices
Class 12 Maths · Matrices · Conceptual Answer #88
How many 2×2 matrices have every entry chosen from {1,2,3}?
✅ Step-by-Step Solution
Final Answer: 81
- Each of four entries has three independent choices, so the count is 3⁴=81.
- 81
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] Each of four entries has three independent choices, so the count is 3⁴=81.
- [0.5 marks] 81
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