Download App

MATRICES — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsMATRICES1 Mark
Question
If order of a matrix is 3 × 3, then it is a?
  1. square matrix
  2. rectangular matrix
  3. unit matrix
  4. None of these
✓

Answer

  1. square matrix

Solution:

Since, order of given matrix is 3 × 3.

$\therefore$ No of rows = No. of columns

So, given matrix is a square 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

Explore more

More "M.C.Q (1 Marks)" from MATRICES→MATRICES — all question types→Maths STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Choose the correct answer from the given four options.
The angle between two vectors $\vec{\text{a}}$ and $\vec{\text{b}}$ with magnitudes $\sqrt{3}$ and 4, respectively, and $\vec{\text{a}}\cdot\vec{\text{b}}=2\sqrt{3}$ is:
  1. $\frac{\pi}{6}$
  2. $\frac{\pi}{3}$
  3. $\frac{\pi}{2}$
  4. $\frac{5\pi}{2}$
→
Let $a$ be a positive real number such that

$\int_{0}^{a} e^{x-[x]} d x=10 e-9$

where $[x]$ is the greatest integer less than or equal to $x$. Then $a$ is equal to:

→
The position vectors of P and Q are respectively a and b.If R is a point on PQ, PQ such that PR = 5PQ, then the position vector of R is:
  1. 5b − 4a
  2. 5b + 4a
  3. 4b − 5a
  4. 4b + 5a
→
Let f, g : R → R be defined by f(x) = 3x + 1 and g(x) = x2 - 2, ∀ x ∈ R, respectively. Then, f o g is:
  1. 3x2 - 5
  2. 9x2 + 6x - 1
  3. 3x2
  4. 9x2 - 6x - 3
→
Using the factor theorem it is found that a + b, b + c and c + a are three factors of the determinant $\begin{vmatrix}-2\text{a}&\text{a}+\text{b}&\text{a}+\text{c}\\\text{b}+\text{a}&-2\text{b}&\text{b}+\text{c}\\\text{c}+\text{a}&\text{c}+\text{b}&-2\text{c}\end{vmatrix}$ the other factor in the value of the determinant is:
  1. 4
  2. 2
  3. a + b + c
  4. None of these.
→
Choose the correct answer from the given four options.
Let f : R → R be given by f(x) = tanx. Then f-1(1) is:
  1. $\frac{\pi}{4}$
  2. $\{\text{n}\pi+\frac{\pi}{4}:\text{n}\in\text{Z}\}$
  3. $\text{Does not exist.}$
  4. $\text{None of these}.$
→
Perpendicular distance of the point $(3, 4, 5)$ from the $y$ - axis, is
→
If the position vectors of the points $A, B, C $ be $i + j,\,\,\,i - j$ and $a\,\,i + b\,j + c\,k$ respectively, then the points  $A, B, C $ are collinear if
→
If $\text{A}=\begin{bmatrix}3&\text{x}-1\\2\text{x}+3&\text{x}+2\end{bmatrix}$ is a symmetric matrix, then x =
  1. 4
  2. 3
  3. -4
  4. -3
→
The distance of point (a, β, γ) from y axis is -
→