Matrices and Determinants (BITSAT Mathematics): Questions 1  8 of 24
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 390 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 250.00 or
Question number: 1
» Matrices and Determinants » Types of Matrices
Question
If is symmetric and then is –
Choices
Choice (4)  Response  

a.  Skew – symmetric 

b.  Symmetric 

c.  Diagonal 

d.  Both b. and c. are correct 

Question number: 2
» Matrices and Determinants » Types of Matrices
Question
A square matrix is called a diagonal matrix if for,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 3
» Matrices and Determinants » Types of Matrices
Question
If inverse of a diagonal matrix is –
Choices
Choice (4)  Response  

a.  Diagonal 

b.  Symmetric 

c.  Skew – symmetric 

d.  None of the above 

Question number: 4
» Matrices and Determinants » Determinants and Matrices of Order Two and Three
Question
The roots of equation are –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 5
» Matrices and Determinants » Algebra of Matrices
Question
If for a matrix where is the identity matrix, then A equals
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 6
» Matrices and Determinants » Solution of Simultaneous Linear Equations in Two or Three Variables
Question
The system of equation of equations in unknowns has a unique solution if
Choices
Choice (4)  Response  

a.  Det A≠0, AdjAB = 0 

b.  Det A = 0, AdjAB = 0 

c.  Det A = 0, AdjAB≠0 

d.  Det A≠0 

Question number: 7
» Matrices and Determinants » Adjoint and Evaluation of Inverse of Square Matrix
Question
The inverse of a symmetric matrix is –
Choices
Choice (4)  Response  

a.  Skew – symmetric 

b.  Symmetric 

c.  Diagonal matrix 

d.  Question does not provide sufficient data or is vague 

Question number: 8
» Matrices and Determinants » Properties and Operations of Determinants
Question
If each element of a determinant of order with value is multiplied by , then the new determinant is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 
