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Name: Need solution for RD Sharma maths Class 12 Chapter 5 Determinants Exercise VSQ Question 32 maths textbook solution.
Uploaded: Wed, 2021-08-04 13:33
Description: Need solution for RD Sharma maths Class 12 Chapter 5 Determinants Exercise VSQ Question 32 maths textbook solution.

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

#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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Need solution for RD Sharma maths Class 12 Chapter 5 Determinants Exercise VSQ Question 32 maths textbook solution.

Answers (1)

Answer: 54

Hint: Here we use basic concept of determinant of matrix

Given:

$\begin{aligned} &A \text { is } 3 \times 3 \text { order matrix, } n=3\\ &|A|=2 \text { Find }|A(3 I)|=? \end{aligned}$

Solution :

$\begin{aligned} &|A(3 I)|=|A| \times|3 I| \\ &=|A| \times 3^{n} \times I \quad\left[|k A|=k^{n}|A|\right] \\ &=2 \times 3^{3} \times 1 \\ &=2 \times 27 \\ &=54 \end{aligned}$

Posted by

infoexpert23

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Need solution for RD Sharma maths Class 12 Chapter 5 Determinants Exercise VSQ Question 32 maths textbook solution.

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