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Name: Explain solution RD Sharma class 12 chapter Determinants exercise 5.1 question 10 subquestion (vi) maths
Uploaded: Wed, 2021-08-04 21:30
Description: Explain solution RD Sharma class 12 chapter Determinants exercise 5.1 question 10 subquestion (vi) maths

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

#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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Explain solution RD Sharma class 12 chapter Determinants exercise 5.1 question 10 subquestion (vi) maths

Answers (1)

Answer:

$x=\pm 3$

Hint:

Take determinant of matrix on both side and equate it.

Given:

$\begin{aligned} &\left|\begin{array}{ll} 2 x & 5 \\ 8 & x \end{array}\right|=\left|\begin{array}{ll} 6 & 5 \\ 8 & 3 \end{array}\right| \\ \end{aligned}$

Solution:

$\begin{aligned} &2 \mathrm{x}^{2}-40=18-40 \\ &2 \mathrm{x}^{2}=18 \\ &\mathrm{x}^{2}=9 \\ &\mathrm{x}=\pm 3 \end{aligned}$

Posted by

Gurleen Kaur

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Explain solution RD Sharma class 12 chapter Determinants exercise 5.1 question 10 subquestion (vi) maths

Answers (1)

Posted by

Gurleen Kaur

Crack CUET with india's "Best Teachers"

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