NDA (National Defence Academy) Mathematics: Questions 277  281 of 384
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Question number: 277
» Algebra » Complex Numbers » Argument
Appeared in Year: 2012
Question
If then which one the following is correct?
Choices
Choice (4)  Response  

a.  The real part of is zero. 

b.  The sum of real and imaginary parts of is 

c.  The real part of is equal to imaginary part of 

d.  The Imaginary part of is zero. 

Question number: 278
» Trigonometry » Trigonometric Identities Sum and Difference Formulae
Appeared in Year: 2012
Question
Which one of the following is positive in the third quadrant?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 279
» Algebra » Logarithms and Their Applications
Appeared in Year: 2016
Question
If for any then which one of the following is correct?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 280
» Algebra » Arithmetic Progression
Question
What is the arithmetic mean of first natural number with weights being the number itself?
Choices
Choice (4)  Response  

a.  9 

b.  5 

c.  7 

d.  3 

Question number: 281
» Matrices and Determinants » Operations on Matrices Determinant of a Matrix,
Question
If, the which of the following are correct?
The value of the determinats of the matrix
The determinant ofis an even function
Select the correct answer using the code given below:
Choices
Choice (4)  Response  

a. 


b.  2 and 3 only 

c.  1 and 3 only 

d.  1,2 and 3 
