1.

Which of the following is a scalar matrix ?(A) |(1,0),(0,2)|(B) |(0,0,0),(0,0,0)|(C) |(k,0,0),(0,k,0),(0,0,k)|(D) |0,0,0|

Answer»

Answer is (C) |(k,0,0),(0,k,0),(0,0,k)|



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