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Which one of the following is true about...

Which one of the following is true about the matrix `[(1,0,0),(0,0,0),(0,0,5)]`?

A

a scalar matrix

B

a diagonal matrix

C

an upper triangular matrix

D

a lower triangular matrix

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The correct Answer is:
A, D
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SURA PUBLICATION-MATRICES AND DETERMINANTS -EXERCISE 7.5
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  4. Find which one is true. If A and B are two matrices such that A+B and ...

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