If ![A=\left[\begin{array}{ccc}2&-1&1\\-1&2&-1\\1&-1&2\end{array}\right]](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%26amp%3B-1%26amp%3B1%5C%5C-1%26amp%3B2%26amp%3B-1%5C%5C1%26amp%3B-1%26amp%3B2%5Cend%7Barray%7D%5Cright%5D "A=\left[\begin{array}{ccc}2&-1&1\\-1&2&-1\\1&-1&2\end{array}\right]")
Verify that A³ – 6A² + 9A – 4I = O and hence find A-1.
Answers
Answered by
1
Answer:
please mark me as b r a i n l i e t
Attachments:
Answered by
0
Answer:
here A cube means multiply A with A two times and I means identity matrix of order 2×2.Hope you can solve it by yourself thanks dear
Similar questions