This chapter helps us understand complex numbers ,its characteristics and i which is an imaginary number, i^2 =-1. This is a very important chapter in the GCE examination and it covers about 60% of the total marks of the mathematics. It is also a short and easy to understand topic especially if you follow this lesson carefully.
Get this lesson and become a improve greatly on your grades by acquiring perfect skills in complex numbers.

OBJECTIVE

By the end of this chapter students should be able to;

know the number system and the imaginary number i

state the real and imaginary parts of a complex number

add and subtract complex numbers

multiply complex numbers and simplify them using i2=-1

state the conjugate of any complex number

express complex number in the form a + bi or x + yi

modulus and argument of any complex number after representing the complex number on an argon diagram

find the square root of any complex number after using the concept of equality of complex numbers

forms in which complex numbers are expressed

application of the Moivres Theorem

complex polynomials

Find the locus of a set of points in an argon diagram