# Algebra-Complex 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

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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

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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.

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