Download App

Question Bank [2022] — Maths STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMathsQuestion Bank [2022]1 Mark
Question
If $A=\left[\begin{array}{cc}1 & 2 \\ 3 & -2 \\ -1 & 0\end{array}\right]$ and $B=\left[\begin{array}{ccc}1 & 3 & 2 \\ 4 & -1 & 3\end{array}\right]$ then find the order of $A B$
✓

Answer

$A=\left[\begin{array}{cc}1 & 2 \\ 3 & -2 \\ 1 & 0\end{array}\right]$ is $3 \times 2$ matrix and $B=\left[\begin{array}{ccc}1 & 3 & 2 \\ 4 & -1 & 3\end{array}\right]$ is $2 \times 3$ matrix
$\therefore AB$ is $3 \times 3$ 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 "Answer the following questions in short." from Question Bank [2022]→Question Bank [2022] — all question types→Maths STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

$A(2,3), B(-1,5), C(-1,1)$ and $D(-7,5)$ are four points in the Cartesian plane, Check if, $\overline{C D}$ is parallel to $\overline{ AB }$
→
Evaluate the following:

$\int \frac{\log x}{x} d x$

→
A particle is moving along the X-axis. Its acceleration at time t is proportional to its velocity at that time. Find the differential equation of the motion of the particle.
→
Determine the order and degree of the following differential equations:

$\sqrt[3]{1+\left(\frac{d y}{d x}\right)^2}=\frac{d^2 y}{d x^2}$

→
In $\triangle ABC$, prove that $( a - b ) \sin C +( b - c ) \sin A +( c - a ) \sin B =0$
→
In $\triangle ABC$, prove that $ac\ \cos B − bc \cos\ A = a^2 − b^2$
→
Find the general solutions of the following equations :

$\operatorname{cosec} \theta=-\sqrt{2}$

→
Integrate the following functions w.r.t. x:

$\left[2+\cot x-\operatorname{cosec}^2 x\right] e^x$

→
Construct a $3 \times 4$ matrix $A = [a_{ij}]$ whose element $a_{ij}$ are given by:
$a_{ij} = i - j$
→
Differentiate $y =\sqrt{x^2+5}$ w.r. to $x$
→