NDA (National Defence Academy) Mathematics: Questions 123  129 of 384
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Question number: 123
» Trigonometry » Trigonometric Identities Sum and Difference Formulae
Appeared in Year: 2012
Question
What is the maximum value of ?
Choices
Choice (4)  Response  

a.  4 

b.  2 

c.  1 

d.  10 

Question number: 124
» Vector Algebra » Addition of Vectors
Appeared in Year: 2012
Question
What is the value of if the vectors are coplanar?
Choices
Choice (4)  Response  

a.  2 

b. 


c. 


d.  4 

Question number: 125
» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,
Question
The number 266 in decimal system is expressed in binary system by
Choices
Choice (4)  Response  

a.  100001010 

b.  100101101 

c.  111001001 

d.  101010001 

Question number: 126
» Vector Algebra » Scalar Product or Dot Product of TwoVectors
Appeared in Year: 2012
Question
If the magnitude of two vectors are equal then which one of the following is correct?
Choices
Choice (4)  Response  

a.  is perpendicular to 

b. 


c. 


d.  All of the above 

Question number: 127
» Algebra » Geometric and Harmonic Progressions
Question
If , , are in , then what is the value of
Choices
Choice (4)  Response  

a.  5 

b.  15 

c.  20 

d.  10 

Question number: 128
» Trigonometry » Angles and Their Measures in Degrees and in Radians
Appeared in Year: 2012
Question
What is the value of ?
Choices
Choice (4)  Response  

a. 


b. 


c.  217/921 

d. 


Question number: 129
» Algebra » Operations on Sets
Question
If and are two sets, then what is equal to?
Choices
Choice (4)  Response  

a. 


b.  {4,9, 8,6, 5} 

c.  {1,5, 6,7, 9} 

d.  {9,8, 6,5, 4} 
