Question 4
Let
. Find the condition on and for which the matrix is positive-definite.
and
—
and
and
Let
. Find the condition on and for which the matrix is positive-definite.
and
—
and
and
Correct answer
—
Question 4 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 3 marks.