Question
a.
Identity matrix
b.
Null matrix
c.
Singular matrix
d.
None of the mentioned
Posted under Discrete Mathematics
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Q. If a matrix A = [A₁₁ A₁₂ ⋯ A₁ₙ A₂₁ A₂ₙ ⋮ ⋮ Aₙ₁ Aₙ₂ ⋯ Aₙₙ], order(nxn) Aᵢᵢ = 1, Aᵢⱼ = 0 for i ≠ j. Then that matrix is known as ________
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