Question 1
Consider a vector such that . Let , where is the identity matrix. Which of the following is true?
is Hermitian and unitary.
is Hermitian but not unitary.
is unitary but not Hermitian.
is neither Hermitian nor unitary.
Consider a vector such that . Let , where is the identity matrix. Which of the following is true?
is Hermitian and unitary.
is Hermitian but not unitary.
is unitary but not Hermitian.
is neither Hermitian nor unitary.
Correct answer
is Hermitian and unitary.
Question 1 of 14 in the IIT Madras BS Machine Learning Foundations (MLF) Quiz 2 paper sat on 12 Apr 2026, in the January 2026 term (Machine Learning Foundations 06 Apr 26). It carries 4 marks.