NDA (National Defence Academy) Mathematics: Questions 137  143 of 384
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Question number: 137
» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,
Appeared in Year: 2012
Question
What is equal to?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 138
» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,
Appeared in Year: 2016
Question
What is equal to?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 139
Question number: 140
» Algebra » Arithmetic Progression
Question
The geometric mean and harmonic mean of two nonnegative observations areand respectively. Then what is the arithmetic mean of the observation equal to:
Choices
Choice (4)  Response  

a.  32.5 

b.  29 

c.  37.5 

d.  37 

Question number: 141
» Analytical Geometry of Two and Three Dimensions » Equation of a Sphere
Question
What is the diameter of the sphere
Choices
Choice (4)  Response  

a.  27 units 

b.  22 units 

c.  12 units 

d.  25 units 

Question number: 142
» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,
Appeared in Year: 2016
Question
Let
Then, What is the value of
Choices
Choice (4)  Response  

a.  62 

b.  63 

c.  65 

d.  68 

Passage
The equation formed by multiplying each root of by is .
Question number: 143 (1 of 2 Based on Passage) Show Passage
» Algebra » Quadratic Equations with Real Coefficients
Appeared in Year: 2012
Question
Which one of the following is correct?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

