A) A is a zero matrix
B) \[A=(-\text{ }1)l,\]where\[l\]is a unit matrix
C) \[{{A}^{-1}}\]does not exist
D) \[{{A}^{2}}=l\]
Correct Answer: D
Solution :
Given matrix (a) It is clear that A is not a zero matrix. (b) (c) Since, . So,exists. (d)You need to login to perform this action.
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