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#RD Sharma Vol. 1 Class 12
#R.D. Sharma
#CBSE 12 Class
#Determinants
#Maths
#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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Please solve RD Sharma Class 12 Chapter 5 Determinants Exercise Very Short Answer Question 22 maths textbook solution.

Answers (1)

Answer : $|B|=\frac{1}{3}$

Hint: Here we use basic concept of determinant of matrix

Given:

$\begin{aligned} &|A|=3 \\ &A B=I \\ &|B|=? \end{aligned}$

Solution :

$AB = I$

$\rightarrow$ Let's find determinate both sides

$\begin{aligned} &|A B|=|I| \\ &|A| \times|B|=|I|[|I|=1 \text { and }|A|=3] \\ &3|B|=1 \\ &|B|=\frac{1}{3} \end{aligned}$

Posted by

infoexpert23

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Please solve RD Sharma Class 12 Chapter 5 Determinants Exercise Very Short Answer Question 22 maths textbook solution.

Answers (1)

Posted by

infoexpert23

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