1
GATE EE 2016 Set 1
Numerical
+1
-0
Consider $$3 \times 3$$ matrix with every element being equal to $$1.$$ Its only non-zero eigenvalue is __________.
Your input ____
2
GATE EE 2015 Set 1
Numerical
+1
-0
If the sum of the diagonal elements of a $$2 \times 2$$ matrix is $$-6$$, then the maximum possible value of determinant of the matrix is ____________.
Your input ____
3
GATE EE 2015 Set 2
MCQ (Single Correct Answer)
+1
-0.3
We have a set of $$3$$ linear equations in $$3$$ unknown. $$'X \equiv Y'$$ means $$X$$ and $$Y$$ are equivalent statements and $$'X \ne Y'$$ means $$X$$ and $$y$$ are not equivalent statements.

$$P:$$ There is a unique solution.
$$Q:$$ The equations are linearly independent .
$$R:$$ All eigen values of the coefficient matrix are non zero .
$$S:$$ The determinant of the coefficient matrix is non-zero .


Which one of the following is TRUE?
A
$$P \equiv Q \equiv R \equiv S$$
B
$$P \equiv R \ne Q \equiv S$$
C
$$P \equiv Q \ne R \equiv S$$
D
$$P \ne Q \ne R \ne S$$
4
GATE EE 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Given a system of equations $$$x + 2y + 2z = {b_1}$$$ $$$5x + y + 3z = {b_2}$$$
Which of the following is true its solutions
A
The system has a unique solution for any given $${b_1}$$ and $${b_2}$$
B
The system will have infinitely many solutions for any given $${b_1}$$ and $${b_2}$$
C
Whether or not a solution exists depends on the given $${b_1}$$ and $${b_2}$$
D
The system would have no solution for any values of $${b_1}$$ and $${b_2}$$
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