Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Explain Solution R.D.Sharma Class 12 Chapter 4 Algebra of Matrices Exercise Multiple Choice Questions Question 32 maths Textbook Solution.

Explain Solution R.D.Sharma Class 12 Chapter 4 Algebra of Matrices Exercise Multiple Choice Questions Question 32 maths Textbook Solution.

Answers (1)

Answer: The correct option is (A).

Given:A=\left[a_{i j}\right]_{m \times n} \text { and } a_{i j}=K

Solution:

\because A=\left[a_{\ddot{j}}\right]_{m \times n}

Trace of A, i.e,

\begin{aligned} \operatorname{tr}(A)=\sum a_{i j}^{n i}=1 &=a_{11}+a_{22}+a_{33}+\ldots .+a_{n n} \\ &=K+K+K+K \ldots . \quad \text { (n times) } \\ &=K(n) \\ &=n K \end{aligned}

Thus, the correct option is (A).

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 question papers QR codes part of 'internal systems'; board cautions 'unverified claims'
anam-khan

Delhi court grants interim bail to Class 12 student in stabbing case to appear for CBSE exam
anam-khan

CBSE Class 12 History Exam 2026 Analysis: Moderate paper, tricky MCQs, student-friendly pattern

Latest Question