1.

If A is any square matrix. Observe the following lists and matching from List - I to List - II is {:("List-I","List-II"),((A)A^(2)=A,"(1) Orthogonal matrix"),((B)A^(2)=I,"(2) Symmetric matrix"),((C)A^(2)=0,"(3) Idempotent matrix"),((D)A.A^(T)=A^(T)A=I,"(4) Nilpotent matrix"),(,"(5) Involutory matrix"):}

Answer»

`{:(A,B,C,D),(2,5,4,1):}`
`{:(A,B,C,D),(3,2,4,1):}`
`{:(A,B,C,D),(3,5,4,1):}`
`{:(A,B,C,D),(3,5,4,2):}`

ANSWER :C


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