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Question: Answered & Verified by Expert
A square matrix $\left[a_{i j}\right]$ in which $a_{i j}=0$ for $i \neq j$ and $a_{i j}=k$ (constant) for $i=j$ is called a
MathematicsMatricesTS EAMCETTS EAMCET 2001
Options:
  • A unit matrix
  • B scalar matrix
  • C null matrix
  • D diagonal matrix
Solution:
1345 Upvotes Verified Answer
The correct answer is: scalar matrix
We have,
$a_{i j}=0, i \neq j$
and
$a_i=k, i=j$
It is scalar matrix.

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