AS/A2 Pure 5 Pure 6

P4 Topic 3: Complex numbers
Division of complex numbers
This Argand diagram shows how complex numbers a and b are divided to produce the complex number f = a / b.

Summary the Argand diagram illustrates a / b = f, where a, b and f are complex numbers If a is positioned at (1,0) so that a = 1, then f is the reciprocal of b The Plane Graphic Calculator java applet