Topics
Complex Numbers
topic badge
India
Class XI

What is a Complex Number?

Lesson
Practice

Interactive practice questions

What type of number can be written in the form $a+bi$a+bi?

A whole number

A

A rational number

B

A complex number

C

A real number

D
Easy
< 1min

What is a pure imaginary number?

Easy
< 1min

Answer the following.

Easy
< 1min

Consider the complex number $7+2i$7+2i.

Easy
< 1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account
Book a Demo
Sign up for free

Outcomes

11.A.CNQE.1

Need for complex numbers, especially √-1, to be motivated by inability to solve every quadratic equation. Brief description of algebraic properties of complex numbers. Argand plane and polar representation of complex numbers. Statement of Fundamental Theorem of Algebra, solution of quadratic equations in the complex number system.

What is Mathspace

About Mathspace