NDA (National Defence Academy) Mathematics: Questions 48  54 of 384
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Question number: 48
» Matrices and Determinants » Adjoint and Inverse of a Square Matrix
Question
If is a square matrix of order and then what is
Choices
Choice (4)  Response  

a.  1/40 

b.  1/64 

c.  2/25 

d.  8/51 

Question number: 49
» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,
Appeared in Year: 2016
Question
If then what is the value of the determinates of
Choices
Choice (4)  Response  

a.  1 

b. 


c.  0 

d.  2 

Question number: 50
» Algebra » Operations on Sets
Question
Let be the universal set, N being the set of natural numbers. if and then what is the complement of ?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 51
» Trigonometry » Trigonometric Identities Sum and Difference Formulae
Appeared in Year: 2012
Question
What is perimeter of the triangle with vertices and ?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 52
» Algebra » Arithmetic Progression
Question
What is the term of the sequence 4,8, 12,16,20,24,28,32, …. . ?
Choices
Choice (4)  Response  

a.  4n 

b. 


c. 


d. 


Question number: 53
» Algebra » Quadratic Equations with Real Coefficients
Question
What is the distance between the lines and ?
Choices
Choice (4)  Response  

a.  units 

b.  units 

c.  0 

d.  units 

Question number: 54
» Trigonometry » Trigonometric Identities Sum and Difference Formulae
Question
What is equal to? Where,
Choices
Choice (4)  Response  

a. 


b.  0 

c.  2 

d. 

