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