Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Let A = [2 4 3 2], B = [1 3 - 2 5], C = [ - 2 5 3 4] Find each of the following: (iii) 3A - C

Q1    Let A = \begin{bmatrix} 2 &4 \\ 3 & 2 \end{bmatrix}, B = \begin{bmatrix} 1 &3 \\ -2 & 5 \end{bmatrix}, C = \begin{bmatrix} -2 &5 \\ 3 & 4 \end{bmatrix}

Find each of the following:

            (iii) 3A - C

Answers (1)

best_answer

A = \begin{bmatrix} 2 &4 \\ 3 & 2 \end{bmatrix}     C = \begin{bmatrix} -2 &5 \\ 3 & 4 \end{bmatrix}

  (iii) 3A - C

First multiply each element of A with 3 and then subtract C

     3A -C = 3\begin{bmatrix} 2 &4 \\ 3 & 2 \end{bmatrix}  - \begin{bmatrix} -2 &5 \\ 3 & 4 \end{bmatrix}

    3A -C = \begin{bmatrix} 6 &12 \\ 9 & 6 \end{bmatrix}   - \begin{bmatrix} -2 &5 \\ 3 & 4 \end{bmatrix}

     3A -C = \begin{bmatrix} 6-(-2) &12-5 \\ 9-3 & 6-4 \end{bmatrix}

     3A -C = \begin{bmatrix} 8 &7 \\ 6 & 2 \end{bmatrix}

Posted by

seema garhwal

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

Board Exam Time Table 2025 Live: UP Board exams from February 24; CBSE, BSEB date sheet soon
anam-khan

CBSE Date Sheet 2025 Live: Class 10, 12 board exam dates soon; syllabus, sample papers
anam-khan

Extra time in CBSE exams for students with type 1 diabetes: Kerala SHRC seeks report on plea

Latest Question