If A=\left[\begin{array}{ccc}1 & 2 & 3 \ 3 & -2 & 1 \ 4 & 2 & 1]\end{array}, then show that A^3-23 A-40 I=O

CBSE Class 12 Math 2023 Delhi Set 1 Solved Paper - Question 26

SECTION - C

This section comprises of Short Answer (SA) type questions of 3 marks each.

Question : 26 of 38

Marks: +1, -0

A={[\table 1 , 2 , 3 ; 3 , -2 , 1 ; 4 , 2 , 1]}

, then show that

A^3-23 A-40 I=O

Solution:

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