JEE Main 2024 Mathematics question
Let and . The sum of the prime factors of |P⁻¹AP − 2I| is equal to
Answer: (A)
Solution
|P⁻¹AP − 2I| = |P⁻¹(A − 2I)P| = |A − 2I|. Here A − 2I = [[0, 1, 2], [6, 0, 11], [3, 3, 0]],
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