Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Provide Solution for R.D.Sharma Maths Class 12 Chapter 4 Algebra of Matrices Exercise Multiple Choice Questions Question 19 Maths Textbook Solution.

Provide Solution for R.D.Sharma Maths Class 12 Chapter 4 Algebra of Matrices Exercise Multiple Choice Questions Question 19 Maths Textbook Solution.

Answers (1)

Answer: The correct option is (D).

Given: A is a Square Matrix.

Solution:

If A is a Square matrix,

\begin{aligned} &\text { Let } A=\left[\begin{array}{ll} 1 & 2 \\ 1 & 0 \end{array}\right] \\ &\begin{aligned} A A &=\left[\begin{array}{ll} 1 & 2 \\ 1 & 0 \end{array}\right] \times\left[\begin{array}{ll} 1 & 2 \\ 1 & 0 \end{array}\right] \\ &=\left[\begin{array}{ll} 3 & 2 \\ 1 & 2 \end{array}\right] \end{aligned} \end{aligned}

Then, AA is neither of the matrices given in the options of the question.

So, the correct option is (D).

Posted by

infoexpert21

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