If A= [ array cc 1 & -3 2 & k array ] and A^ 2 -4 A+10=A , then k is equal to

Mathematics · JEE Main · NTA Exams — Matrices and Determinants

1. 0
2. - 4
3. 4 and not 1
4. 1 or 4

Answer

(C) 4 and not 1

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