If matrix A = [[1, 1, 1], [1, 1, 1], [1, 1, 1]], then Aⁿ (where n is a positive integer) is equal to:
If matrix A = [[1, 1, 1], [1, 1, 1], [1, 1, 1]], then Aⁿ (where n is a positive integer) is equal to:
- A. n A
- B. 3ⁿ A
- C. 3^(n−1) A
- D. A
Answer: C) 3^(n−1) A
Explanation: A² = A × A = [[3, 3, 3], [3, 3, 3], [3, 3, 3]] = 3A. A³ = A² × A = 3A × A = 3A² = 3(3A) = 9A = 3²A. By induction, Aⁿ = 3^(n−1) A.
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