AlgebraComplex Numbers (NDA (National Defence Academy) Mathematics): Questions 1  8 of 12
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Question number: 1
» Algebra » Complex Numbers » Cube Roots of Unity
Appeared in Year: 2016
Question
What is equal to, where is the cube root of unity?
Choices
Choice (4)  Response  

a.  3ω 

b. 


c.  0 

d.  1 

Question number: 2
» Algebra » Complex Numbers » Cube Roots of Unity
Question
What is equal to, where is the cube root of unity?
Choices
Choice (4)  Response  

a. 


b.  3ω 

c.  1 

d.  0 

Question number: 3
» Algebra » Complex Numbers » Modulus
Appeared in Year: 2012
Question
If Where, , then what is the value of?
Choices
Choice (4)  Response  

a. 


b.  4 

c.  8 

d.  0 

Question number: 4
» Algebra » Complex Numbers » Modulus
Question
If , then what is the imaginary part of equal to?
Choices
Choice (4)  Response  

a.  1 

b.  0 

c. 


d. 


Question number: 5
» Algebra » Complex Numbers » Basic Properties
Appeared in Year: 2016
Question
If is a complex number, then which one of the following is correct?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 6
» Algebra » Complex Numbers » Modulus
Appeared in Year: 1960
Question
If Where, , then what is the value of?
Choices
Choice (4)  Response  

a. 


b.  0 

c.  1 

d. 


Question number: 7
» Algebra » Complex Numbers » Modulus
Question
If where, , then what is the value of?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 8
» Algebra » Complex Numbers » Cube Roots of Unity
Question
What is equal to, where is the cube root of unity?
Choices
Choice (4)  Response  

a.  1 

b.  0 

c. 


d.  3ω 
