MatricesMedium
Question
If a matrix A is such that 3A3 + 2A2 + 5A + I = 0, then A-1 is equal to-
Options
A.− (3 A2 + 2 A + 5)
B.(3 A2 +2 A + 5)
C.3 A2 − 2 A − 5)
D.none of these
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