Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Please Solve RD Sharma Class 12 Chapter Algebra of Matrices Exercise 4.2 Question 8 Maths Textbook Solution.

Please Solve RD Sharma Class 12 Chapter Algebra of Matrices Exercise 4.2 Question 8 Maths Textbook Solution.

Answers (1)

Answer:  X= \begin{bmatrix} -1 &-1 \\ -2 & -1 \end{bmatrix}
Hint: Substitute Y value\: in\: 2X+Y .

Given: 2X+Y = \begin{bmatrix} 1 &0 \\ -3 & 2 \end{bmatrix} and \: Y = \begin{bmatrix} 3 &2 \\ 1 & 4 \end{bmatrix}
Here, we have to compute X .
Solution:

2X+Y = \begin{bmatrix} 1 &0 \\ -3 & 2 \end{bmatrix}, Y = \begin{bmatrix} 3 &2 \\ 1 & 4 \end{bmatrix} 

2X+ \begin{bmatrix} 3 &2 \\ 1 & 4 \end{bmatrix} = \begin{bmatrix} 1 &0 \\ -3 & 2 \end{bmatrix}

2X= \begin{bmatrix} 1-3 &0-2 \\ -3-1 & 2-4 \end{bmatrix}

X= \frac{1}{2}\begin{bmatrix} -2 &-2 \\ -4 & -2 \end{bmatrix}

X= \begin{bmatrix} -1 &-1 \\ -2 & -1 \end{bmatrix}

Posted by

infoexpert27

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
anam-khan

CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years

Latest Question