Question
The matrix$ \displaystyle \begin{bmatrix}-12\\10 \\13 \\4 \end{bmatrix}$ is a:
  1. square matrix
  2. row matrix
  3. column matrix
  4. null matrix

Answer

  1. column matrix
Solution:
Matrix $ \displaystyle \begin{bmatrix}-12\\10 \\13 \\4 \end{bmatrix}$ is a column matrix.Hence, the answer is column matrix.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

If the vectors $3\hat{\text{i}}+\lambda\hat{\text{j}}+\hat{\text{k}}$ and $2\hat{\text{i}}-\hat{\text{j}}+8\hat{\text{k}}$ are perpendicular, then $\lambda$ is equal to: 
  1. $-14$
  2. $7$
  3. $14$
  4. $\frac{1}{7}$
A function f from the set of natural numbers to the set of integers defined by $\text{f(n)}\begin{cases}\frac{\text{n}-1}{2},&\text{when n is odd}\\-\frac{\text{n}}{2},&\text{when n is even}\end{cases}$ is:
  1. Neither one-one nor onto.
  2. One-one but not onto.
  3. Onto but not one-one.
  4. One-one and onto.
Area of the region bounded by the curve $y^2 = 4x, y-$axis and the line $y = 3,$ is:
The area of ellipse $\frac{\text{x}^2}{4^2}+\frac{\text{y}^2}{9^2}=1$ is:
  1. $6\pi\text{ sq}.\text{units}$
  2. $\frac{\pi(\text{a}^2+\text{b}^2)}{4}\text{ sq}.\text{units}$
  3. $\pi(\text{a+b})\text{ sq}.\text{units}$
  4. $\text{None of these}$
If the matrix is a square matrix and it contains 36 elements, then the order of the matrix is:
  1. 4 × 4
  2. 8 × 8
  3. 6 × 6
  4. 3 × 3
Evaluate $\begin{bmatrix}3&-1&3\\6&-5&4\\3&-2&3\end{bmatrix}$ is:
  1. 100
  2. 223
  3. 240
  4. 230
z = 10x + 25y subject to $0\leq\text{X}\leq3$ and $0\leq\text{X}\leq3,$ $\text{x}+\text{y}\leq5$ then the maximum value of z is:
$\int\limits^\infty_0\frac{1}{1+\text{e}^\text{x}}\text{dx}$ equals:
  1. $\log2-1$
  2. $\log2$
  3. $\log4-1$
  4. $-\log2$
The matrix $\text{A}=\begin{bmatrix}1&0&0\\0&2&0\\0&0&4\end{bmatrix}$ is:
  1. Identity matrix.
  2. Symmetric matrix.
  3. Skew-symmetric matrix.
  4. Diagonal matrix.
If A is a 2-rowed square matrix and IAI = 6 then A adj A = ?