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Match the LIST-I with LIST-II

LIST-I
(Matrix)
LIST-II
(Type of matrix)
A.A=[aij]m×mA = [a_{ij}]_{m \times m} where aij=0 ∀ i≠ja_{ij} = 0\ \forall\, i \neq jI.Scalar matrix
B.A=[aij]m×1A = [a_{ij}]_{m \times 1}II.Diagonal matrix
C.A=[aij]1×nA = [a_{ij}]_{1 \times n}III.Column matrix
D.A=[aij]m×mA = [a_{ij}]_{m \times m} where aij=0 ∀ i≠ja_{ij} = 0\ \forall\, i \neq j and aij=k ∀ i=j,k≠0a_{ij} = k\ \forall\, i = j, k \neq 0IV.Row matrix

Choose the correct answer from the options given below:

Solution

✅ Correct Option: 1

A is square with all off-diagonal entries zero, hence diagonal. B has a single column, hence a column matrix. C has a single row, hence a row matrix. D is diagonal with all diagonal entries equal to kk, hence scalar.

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