Class 12 CBSE Applied Maths Determinants Exercise 4.1

Class 12 CBSE Applied Maths aims to develop an understanding of basic mathematical and statistical tools and their applications in the field of commerce (business/ finance/economics) and social sciences. Topics covered in Class 12th Applied Maths includes : Numbers, Quantification and Numerical Applications, Algebra, Calculus, Probability Distributions , Inferential Statistics, Index Numbers and Time-based data , Financial Mathematics , Linear Programming.


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Exercise 4.2 Exercise 4.3 Exercise 4.4 Exercise 4.5 Exercise 4.6 Exercise 4.7 Exercise 4.8 Exercise 4.9 Case Study

Q1. Evaluate the following determinants:

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Q2. Evaluate the following determinants :

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Q3. (i) If A = then write the cofactor of the element a21 of its 2nd row.
(ii) If Aij is the cofactor of the element aij of the determinant then write the value of a32A32.

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Q4. Find the value of x if

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Q5. (i) If x € N and find the value(s) of x.
(ii) If x € I and find the value(s) of x.

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Q6. If A = then show that |2A| = 4 |A|.

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Q7. Evaluate the following determinants:

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Q8. Prove that

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