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

A spherical balloon is filled with $4500\pi $ cubic meters of helium gas. If a leak in the balloon causes the gas to escape at the rate $72\pi $ cubic meters per minute , then the rate (in meters oer minute) at which the radius of the balloon decreases $49 $ minutes after the leakage began is :
Function $f(x) = {\left( {\left\{ x \right\} - \frac{1}{2}} \right)^2}$ is (where $\{.\}$ represents fractional part function)
If $\text{x}=2\text{ at},\text{y}=\text{at}^2,$ where a is a constant, then $\frac{\text{d}^2\text{y}}{\text{dx}^2}\text{ at}\ \text{x}=\frac{1}{2}$ is:
  1. $\frac{1}{2}\text{a}$
  2. 1
  3. 2a
  4. None of these
Which of the following is an essential condition in a situation for linear programming to be useful?
  1. Linear constraints
  2. Bottlenecks in the objective function
  3. Non - homogeneity
  4. Uncertainty
  5. None of the above
If $\theta$ is the angle between two vectors $\vec{\text{a}}$ and $\vec{\text{b}},$ then $\vec{\text{a}}.\vec{\text{b}}\geq0$ only when:
  1. $0<\theta\frac{\pi}{2}$
  2. $0\leq\theta\leq\frac{\pi}{2}$
  3. $0<\theta<\pi$
  4. $0\leq\theta\leq\pi$
Given two independent events, if the probability that exactly one of them occurs is $\frac {26}{49}$ and the probability that none of them occurs is $\frac {15}{49}$ , then the probability of more probable of the two events is
What will be the value of $ \text{x} + \text{y} + \text{z } \text{if} \cos-1 \text{x} + \cos-1 \text{y} + \cos-1 \text{z} = 3π?$
  1. $ \frac{-1}{3}$
  2. 1
  3. 3
  4. -3
If $P(A)=\frac{3}{10}, P(B)=\frac{2}{5}$ and $P(A \cup B)=\frac{3}{5}$, then find the value of $P(B / A)$.
$\int\frac{\sin\text{x}}{3+4\cos^2\text{x}}\text{ dx}=$
  1. $\log(3+4\cos^2\text{x})+\text{C}$
  2. $\frac{1}{2\sqrt{3}}\tan^{-1}\Big(\frac{\cos\text{x}}{\sqrt{3}}\Big)+\text{C}$
  3. $-\frac{1}{2\sqrt{3}}\tan^{-1}\Big(\frac{2\cos\text{x}}{\sqrt{3}}\Big)+\text{C}$
  4. $\frac{1}{2\sqrt{3}}\tan^{-1}\Big(\frac{2\cos\text{x}}{\sqrt{3}}\Big)+\text{C}$
Let $I$ be an identity matrix of order $2 \times 2$ and $P=\left[\begin{array}{cc}2 & -1 \\ 5 & -3\end{array}\right] .$ Then the value of $n \in N$ for which $P^n =5 I -8 P$ is equal to ..... .