and .
Work out the values of and .
An Argand diagram is a way to represent complex numbers as points or vectors in two dimensional space. An Argand diagram is based around a standard set of Cartesian coordinate axes, with the real axis replacing the -axis and the imaginary axis replacing the -axis.
A complex number given in form, where and are real numbers, may be represented on an Argand diagram as a point with coordinates .
Show the complex numbers and as points on an Argand diagram.
A complex number given in form, where and are real numbers, may also be represented on an Argand diagram by a position vector connecting the origin to the point with coordinates .
On an Argand diagram, show the complex numbers and in position vector form.
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