# Complex Numbers and Quadratic Equations (BITSAT Mathematics): Questions 9 - 15 of 17

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## Question number: 9

» Complex Numbers and Quadratic Equations » Representation of Complex Numbers in Form a Plus Ib

MCQ▾

### Question

, if and only if,

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 10

» Complex Numbers and Quadratic Equations » Algebra of Complex Numbers

MCQ▾

### Question

, if and only if –

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 11

» Complex Numbers and Quadratic Equations » Algebra of Complex Numbers

MCQ▾

If and , then –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 12

» Complex Numbers and Quadratic Equations » Quadratic Equations in Real and Complex Number System

MCQ▾

### Question

If are the cube roots of unity, then is equal to

### Choices

Choice (4) Response

a.

b.

c.

1

d.

All of the above

## Question number: 13

» Complex Numbers and Quadratic Equations » Argand Diagram

MCQ▾

### Question

The locus of point satisfying is –

### Choices

Choice (4) Response

a.

Straight line

b.

A circle

c.

An ellipse

d.

A hyperbola

## Question number: 14

» Complex Numbers and Quadratic Equations » Triangle Inequality

MCQ▾

### Question

If area of triangle on plane turned by number , and is , then is –

### Choices

Choice (4) Response

a.

6

b.

3

c.

4

d.

2

## Question number: 15

» Complex Numbers and Quadratic Equations » Triangle Inequality

MCQ▾

### Question

If the area of the triangle formed by points , and is 50 square units, then|z| is –

### Choices

Choice (4) Response

a.

5

b.

15

c.

10

d.

Question does not provide sufficient data or is vague

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