1
GATE CSE 2023
Numerical
+1
-0
Let A be the adjacency matrix of the graph with vertices {1, 2, 3, 4, 5}.
Let $$\lambda_1,\lambda_2,\lambda_3,\lambda_4$$, and $$\lambda_5$$ be the five eigenvalues of A. Note that these eigenvalues need not be distinct.
The value of $$\lambda_1+\lambda_2+\lambda_3+\lambda_4+\lambda_5=$$ ______________
Your input ____
2
GATE CSE 2022
MCQ (Single Correct Answer)
+1
-0.33
Consider the following two statements with respect to the matrices Am $$\times$$ n , Bn $$\times$$ m , Cn$$\times$$ n and Dn $$\times$$ n .
Statement 1 : tr(AB) = tr(BA)
Statement 2 : tr(CD) = tr(DC)
where tr( ) represents the trace of a matrix. Which one of the following holds?
3
GATE CSE 2021 Set 2
Numerical
+1
-0
Suppose that P is a 4 × 5 matrix such that every solution of the equation Px = 0 is a scalar multiple of [2 5 4 3 1]T. The rank of P is _________
Your input ____
4
GATE CSE 2019
MCQ (Single Correct Answer)
+1
-0.33
Let X be a square matrix. Consider the following two statements on X.
I. X is invertible.
II. Determinant of X is non-zero.
Which one of the following is TRUE?
I. X is invertible.
II. Determinant of X is non-zero.
Which one of the following is TRUE?
Questions Asked from Linear Algebra (Marks 1)
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