# Math Help - Module and amplitude

1. ## Module and amplitude

is a complex number :

Calculate : , deduct module and amplitude of a complex number .

2. Originally Posted by dhiab
is a complex number :

Calculate : , deduct module and amplitude of a complex number .
Modulus of $\alpha$ $=\sqrt{(\sqrt{2-\sqrt{2}})^2+(\sqrt{2+\sqrt{2}})^2}$
$=2$