Download App

Matrices — Mathematics STD 10 — Question

ICSE BoardEnglish MediumSTD 10MathematicsMatrices1 Mark
Question
Evaluate if possible $\left[\begin{array}{cc}6 & 4 \\ 3 & -1\end{array}\right]\left[\begin{array}{c}-1 \\ 3\end{array}\right]$
✓

Answer

$\left[\begin{array}{cc}6 & 4 \\ 3 & -1\end{array}\right]\left[\begin{array}{c}-1 \\ 3\end{array}\right]=\left[\begin{array}{c}-6+12 \\ -3-3\end{array}\right]=\left[\begin{array}{c}6 \\ -6\end{array}\right]$

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 "[1 Mark Question Answer]" from Matrices→Matrices — all question types→Mathematics STD 10 question papers→ICSE Board STD 10 question papers→ICSE Board question paper generator→

Similar questions

Find $x$ and $y,$ if $\left[\begin{array}{cc}-3 & 2 \\ 0 & -5\end{array}\right]\left[\begin{array}{l}x \\ 2\end{array}\right] =\left[\begin{array}{c}-5 \\ y\end{array}\right]$
→
If $x – 2$ is a factor of $2x^3 - x^2 - px - 2$.
Find the value of $p$
→
Use tables to find the acute angle θ, if the value of cos θ is0.9848
→
If the numbers n – 2, 4n – 1 and 5n + 2 are in A.P., find the value of n.
→
Solve equation by factorization$\frac{x^2-5 x}{2}=0$
→
1800 families with 2 children were selected randomly and the following data were recorded:
No. of girls in a family210
No. of families700850250
Computer the probability of a family chosen at random having: 2 girls
→
From a well shuffled deck of 52 cards, one card is drawn. Find the probability that the card drawn is: not a face card
→
Check whether the following are quadratic equations:$(x-3)^3+5=x^3+7 x^2-1$
→
Find the sub$-$triplicate ratio of $27a^3 : 64b^3$
→
A boy scored following marks in various class tests during a term; each test being marked out of 20.
15, 17, 16, 7, 10, 12, 14, 16, 19, 12 and 16
What are his median marks?
→