Complex Numbers Quizzes, Questions & Answers

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Complex Operations Quizzes

Complex and imaginary numbers are essential concepts in higher mathematics. Do you think you know everything about the concepts? If yes, then why not give this super awesome quiz a...

Questions: 10 | Attempts: 2060 | Last updated: Jan 06, 2025

Sample Question
Can you simplify -3i(4 + 2i)?

120

-12i - 6i2

5

6 - 12i

Quiz 1 (Complex Numbers)

This is a complex numbers quiz. There are altogether 12 questions; maximum recommended time limit for completion is 4 minutes (or 20 seconds per question). NO CALCULATORS SHALL BE ...

Questions: 12 | Attempts: 827 | Last updated: Mar 21, 2025

Sample Question
Express in the form .

$«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»e«/mi»«mrow»«mi»i«/mi»«mfrac»«mi»§#960;«/mi»«mn»6«/mn»«/mfrac»«/mrow»«/msup»«/math»$

$«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»e«/mi»«mrow»«mi»i«/mi»«mfrac»«mi»§#960;«/mi»«mn»3«/mn»«/mfrac»«/mrow»«/msup»«/math»$

$«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfrac»«mn»1«/mn»«mn»2«/mn»«/mfrac»«msup»«mi»e«/mi»«mrow»«mi»i«/mi»«mfrac»«mi»§#960;«/mi»«mn»4«/mn»«/mfrac»«/mrow»«/msup»«/math»$

$«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfrac»«mn»1«/mn»«mn»2«/mn»«/mfrac»«msup»«mi»e«/mi»«mrow»«mi»i«/mi»«mfrac»«mi»§#960;«/mi»«mn»6«/mn»«/mfrac»«/mrow»«/msup»«/math»$

All Complex Operations Quizzes

Complex Conjugates Quizzes

What do you know about Schur's lemma?

In the representation theory branch of mathematics, Schur's lemma is a popular theorem used for algebras and groups. Despite the fact that the theorem is outright basic, it has...

Questions: 10 | Attempts: 169 | Last updated: Mar 21, 2025

Sample Question
How do we determine if a ring is strongly indecomposable?

If its endomorphism ring is a local ring

If its exomorphism ring is a local ring

If the external ring is a designer ring

If it has a well-designed and structured ring

All Complex Conjugates Quizzes

Polar Form Quizzes

What do you know about Symplectic representations?

In the representation theory branch of mathematics, Symplectic representations are a Lie variable-based math on a symplectic vector space or a representation of a gathering which p...

Questions: 10 | Attempts: 116 | Last updated: Mar 19, 2025

Sample Question
What condition will a representation of a group G preserve ω?

W(w.v,gw)=w(v,w)

W(g.v,gw)=w(v,w)

W(g.v,vw)=w(v,w)

W(g.v,gw)=w(v,g)

Converting Between Rectangular and Polar Forms of Complex Numbers

Complex numbers have two powerful forms—and knowing how to switch between them is key! In this quiz, you’ll practice converting rectangular form to polar form and back ...

Questions: 10 | Attempts: 13 | Last updated: Dec 10, 2025

Sample Question
Convert 1 + i to polar form.

R = √2, θ = 45°

R = 2, θ = 45°

R = 1, θ = 45°

R = √2, θ = 60°

Polar Form Multiplication & Division

Multiplication and division become elegant in polar form. In this quiz, you’ll see how angles add and subtract while magnitudes multiply and divide. Try this quiz to discover...

Questions: 10 | Attempts: 10 | Last updated: Dec 10, 2025

Sample Question
Multiply: (r = 2, θ = 30°) × (r = 3, θ = 45°)

4, 75°

5, 15°

6, 75°

5, 75°

All Polar Form Quizzes

Quadratic With Complex Quizzes

Quadratic with Complex (Advanced)

Are you ready to take complex quadratic equations to the next level? In this quiz, you’ll work through challenging problems where coefficients, discriminants, and algebraic s...

Questions: 20 | Attempts: 12 | Last updated: Dec 17, 2025

Sample Question
Solve 2x² + 4x + 8 = 0.

X = −1 ± i√3

X = −1 ± 3i

X = −2 ± i√2

X = −1 ± 2i

Quadratic Equations with Complex Roots

Wondering how quadratic equations lead to complex solutions? In this quiz, you’ll explore equations where the discriminant dips below zero and learn how to express solutions ...

Questions: 20 | Attempts: 11 | Last updated: Dec 17, 2025

Sample Question
What is the value of i²?

1

-1

I

All Quadratic With Complex Quizzes

Top Trending Complex Numbers Quizzes

12 - Maths- Unit 3. Complex Numbers

This quiz titled '12 - MATHS- UNIT 3. COMPLEX NUMBERS' assesses understanding of complex numbers, including calculations of values, modulus, amplitude, and complex conjugates, crucial for high school algebra. It enhances...

Questions: 29 | Attempts: 2291 | Last updated: Oct 23, 2025

Sample Question
The value of is (1) (2) (3) (4)

(1)

(2)

(3)

(4)

Quiz 5 (Complex Numbers 2)

.This is a complex numbers quiz. There are altogether 12 questions; maximum recommended time limit for completion is 6 minutes (or 30 seconds per question). NO CALCULATORS SHALL BE USED. Peace.A WHITE GROUP MATHEMATICS CREATION...

Questions: 12 | Attempts: 224 | Last updated: Mar 20, 2025

Sample Question

√2 + √2 i

1+i

√2 - √2 i

1-i

Números Complexos Nivel I

Conceitos básicos a respeito do conjunto dos números complexos.

Questions: 15 | Attempts: 309 | Last updated: Sep 22, 2025

Sample Question
Leia as afirmações a seguir. I - Todo número real é complexo II - Todo número complexo é real III - Nenhum número imaginário é real Estão corretas

Apenas I e II

Apenas I e III

Apenas II e III

I, II e III

Pre-calculus | Topic: Complex Roots | Level One: Complex Numbers

Welcome to your Level One review quiz on Complex Numbers. The following quiz will test you on basic properties of i. REMEMBER Standard form for complex number: a + bi

Questions: 12 | Attempts: 92 | Last updated: Jul 22, 2025

Sample Question
If z is real, what is z*?

A real number

A complex number

A purely imaginary number

Zero

Fundamental Properties of Numbers Quiz

Fundamental Properties Of Numbers Quiz

Designed for Subtest I, this assessment focuses on evaluating foundational mathematics skills. It targets essential competencies required for professional certification, making it crucial for aspiring educators to demonstrate...

Questions: 22 | Attempts: 12 | Last updated: Aug 11, 2025

Sample Question
What are real numbers in mathematics?

B. Real numbers are limited to only integers like 5 or 10.

A real number can be an integer (5), a rational number that is not an integer (3/5), rational number as a decimal (3.5), or an irrational number (pi=3.14...) along a continuum. Points on an infinitely long number line. Let R denote the set of all real numbers. Then:The set R is a field, meaning that addition and multiplication are defined and have the usual properties.The field R is ordered, meaning that there is a total order ? such that, for all real numbers x, y and z:if x ? y then x + z ? y + z;if x ? 0 and y ? 0 then xy ? 0.

C. Real numbers include only whole numbers like 1, 2, 3, 4, etc.

D. Real numbers can only be positive integers and not decimals or negative numbers.

Recent Complex Numbers Quizzes

Net-II Online Mock Test 2020 (Group: Computer Science)

NET-II Online Mock Test 2020 (Group: Computer Science)

Hey Member, Assalam O Alikum! You are about to take the "NET-II Online Mock Test 2020". We hope you are well prepared to attempt this mock test. Before starting this mock test, we want to get you...

Questions: 200 | Attempts: 292 | Last updated: Mar 21, 2025

Sample Question
Mathematics If , then

2

8

4

16