NCERT Solutions for CBSE Class 12 Mathematics ‒ Chapter 4: Determinant (Part X)

NCERT Solutions for CBSE Class 12 Maths Chapter 4 - Determinant (Exercise 4.6) are available here. In this article, you will get solutions for exercise 4.6 from question number 7 to question number 16. These questions can be asked in CBSE Class 12 Maths board exam 2018 and other competitive exams.

NCERT Solutions for CBSE Class 12th Maths, Chapter 4: Determinant (Exercise 4.5) are given below:

Question 7:

5x + 2y = 4

7x + 3y = 5

Solution 7:

 

NCERT Exemplar CBSE Class 12 Mathematics - All Chapters

Question 8:

2x y = –2

3x + 4y = 3

Solution 8:

 

Question 9:

4x – 3y = 3

3x – 5y = 7

Solution 9:

 

Question 10:

5x + 2y = 3

3x + 2y = 5

Solution 10:

 

Question 11:

2x + y + z = 1

x – 2y z = 3/2

3y – 5z = 9

Solution 11:

 

Question 12:

xy + z = 4

2x + y – 3z = 0

x + y + z = 2

Solution 12:

 

Question 13:

2x + 3y +3 z = 5

x – 2y + z = – 4

3x y 2z = 3

Solution 13:

 

Question 14:

x y + 2z = 7

3x + 4y – 5z = – 5

2x y + 3z = 12

Solution 14:


Question 15:

Solution 15:


Question 16:

The cost of 4 kg onion, 3 kg wheat and 2 kg rice is Rs 60. The cost of 2 kg onion, 4 kg wheat and 6 kg rice is Rs 90. The cost of 6 kg onion 2 kg wheat and 3 kg rice is Rs 70. Find cost of each item per kg by matrix method.

Solution 16:

Download NCERT Solutions for Class 12 Maths - Chapter 4 (Determinant) in PDF format

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