A square matrix - a ij - such that a ij -0 for i j and a ij -k where k is a constant for i-j is called

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Scalar Matrix

A square matr...

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A square matrix $[a_{i j}]$ such that $a_{i j} = 0$ for $i \neq j$ and $a_{i j} = k$ where $k$ is a constant for $i = j$ is called

Diagonal as well as scalar matrix

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Scalar matrix

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Unit matrix

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None of the above

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A square matrix $(a_{i j})$ where $a_{i j}$ = 0 for i $\neq$ j and $a_{i j}$ = k (constant) for i = j is called __

A = [a_{i j}]_{n \times n}

a_{i j} = 0

i > j,

A = [a_{i j}]

n \times n

a_{i j} = k

i = j

A =

A = [a_{i j}]

n \times n

a_{i j} = k

i

| A |

⎡ ⎢ ⎣ \begin{matrix} a & 0 & 0 & 0 0 & b & 0 & 0 0 & 0 & c & 0 \end{matrix} ⎤ ⎥ ⎦

A [a_{i j}]

a_{i j} = 0

i \neq j

A

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