# Algebra-Complex Numbers (NDA (National Defense Academy) Mathematics): Questions 1 - 10 of 12

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## Question number: 1

» Algebra » Complex Numbers » Cube Roots of Unity

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Appeared in Year: 2016

MCQ▾

### Question

What is equal to, where is the cube root of unity?

### Choices

Choice (4)Response

a.

b.

c.

0

d.

1

## Question number: 2

» Algebra » Complex Numbers » Cube Roots of Unity

Edit
MCQ▾

### Question

What is equal to, where is the cube root of unity?

### Choices

Choice (4)Response

a.

b.

c.

1

d.

0

## Question number: 3

» Algebra » Complex Numbers » Modulus

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Appeared in Year: 2012

MCQ▾

### 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

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MCQ▾

### 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

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Appeared in Year: 2016

MCQ▾

### 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

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Appeared in Year: 1960

MCQ▾

### 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

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MCQ▾

### 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

Edit
MCQ▾

### Question

What is equal to, where is the cube root of unity?

### Choices

Choice (4)Response

a.

1

b.

0

c.

d.

## Question number: 9

» Algebra » Complex Numbers » Modulus

Edit

Appeared in Year: 2016

MCQ▾

### Question

If , then what is the imaginary part of equal to?

### Choices

Choice (4)Response

a.

b.

1

c.

d.

0

## Question number: 10

» Algebra » Complex Numbers » Argument

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Appeared in Year: 2012

MCQ▾

### 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.

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