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Let A=[{:(1,2,1),(0,1,-1),(3,1,1):}]. Fi...

Let `A=[{:(1,2,1),(0,1,-1),(3,1,1):}]`. Find the sum of all the value of `lamda` for which there exists a column vertor `Xne0` such that `AX=lamdaX`.

A

0

B

1

C

2

D

3

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D
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