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Let M be a 3xx3 matrix satisfying M[{:(0...

Let M be a `3xx3` matrix satisfying `M[{:(0),(1),(0):}]=[{:(-1),(2),(3):}],M[{:(1),(-1),(0):}]=[{:(1),(1),(1):}]=[{:(0),(0),(12):}]` then the sum of the diagonal entries of M is

A

0

B

`-3`

C

6

D

9

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The correct Answer is:
D
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