Let π = (πΌn β (1/n) ππα΅) be a matrix, where π = (1,1,1,β¦,1)α΅ β βn and πΌnβ¦
GATE Β· 2026 Β· DA Β· Data Science & AI
Let π = (πΌn β (1/n) ππα΅) be a matrix, where π = (1,1,1,β¦,1)α΅ β βn and πΌn is the identity matrix of order n. Which of the following options is/are correct?
- A.
πα΅ = π
- B.
π2 = πΌn
- C.
Trace(π) = n
- D.
π is a projection matrix
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