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Consider the following in respect of the...

Consider the following in respect of the matrix `A= [{:(-1,1),(1,-1):}]` :
1. `A^(2)=-A`
2. `A^(3)=4A`
Which of the above is/are correct ?

A

Only 1

B

Only 2

C

Both 1 and 2

D

Neither 1 nor 2

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