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Name: Provide solution for RD Sharma maths Class 12 Chapter 5 Determinants Exercise VSQ Question 49 maths textbook solution.
Uploaded: Wed, 2021-08-04 15:40
Description: Provide solution for RD Sharma maths Class 12 Chapter 5 Determinants Exercise VSQ Question 49 maths textbook solution.

#Maths
#CBSE 12 Class
#RD Sharma Vol. 1 Class 12
#Determinants
#R.D. Sharma
#School

#1.3
#5.2
#5.3
#5.4
#5.5
#5.1
#9.12
#Fill in the blanks
#Very Short Answer type
#Multiple Choice Questions (MCQs)

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Provide solution for RD Sharma maths Class 12 Chapter 5 Determinants Exercise VSQ Question 49 maths textbook solution.

Answers (1)

Answer:27

Hint: Here we use basic concept of determinant of matrix

Such that $|k A|=k^{n}|A|$

Given:

A is $3 \times 3$ order of matrix

$|A| \neq 0 \text { and }|3 A|=k|A|$

Find value of k

Solution :

$\begin{aligned} &\text { Here, }|3 A|=k|A| \\ &\begin{array}{l} 3^{n}|A|=k|A| \quad\left[|k A|=k^{n}|A|\right] \\ 3^{3}|A|=k|A| \\ 3^{3}=k \\ k=27 \end{array} \end{aligned}$

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Provide solution for RD Sharma maths Class 12 Chapter 5 Determinants Exercise VSQ Question 49 maths textbook solution.

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