1

GATE CSE 1997

MCQ (Single Correct Answer)

+2

-0.6

Let $$A = ({a_{ij}})$$ be and n-rowed square matrix and $${I_{12}}$$ be the matrix obtained by interchanging the first and second rows of the n-rowed Identity matrix. Then$${AI_{12}}$$ is such that its first

2

GATE CSE 1996

MCQ (Single Correct Answer)

+2

-0.6

The matrices$$\left[ {\matrix{
{\cos \,\theta } & { - \sin \,\theta } \cr
{\sin \,\,\theta } & {\cos \,\,\theta } \cr
} } \right]\,\,and$$

$$\left[ {\matrix{ a & 0 \cr 0 & b \cr } } \right]\,$$ commute under multiplication

$$\left[ {\matrix{ a & 0 \cr 0 & b \cr } } \right]\,$$ commute under multiplication

3

GATE CSE 1994

MCQ (Single Correct Answer)

+2

-0.6

If A and B are real symmetric matrices of size n x n. Then, which one of the following is true?

4

GATE CSE 1994

MCQ (Single Correct Answer)

+2

-0.6

In a compact single dimensional array representation for lower triangular matrices (i.e., all the elements above the diagonal are zero) of size $$n$$ $$x$$ $$n$$, non-zero elements (i.e., elements of the lower triangle) of each row are stored one after another, starting from the first row, the index of the $${\left( {i,\,j} \right)^{th}}$$ element of the lower triangular matrix in this new representation is

Questions Asked from Linear Algebra (Marks 2)

Number in Brackets after Paper Indicates No. of Questions

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