Solutions to a simple equation of z to some power equal 1, or minus 1, are known as the roots of unity.
lesson notes:11 nth roots of unity
Solutions to a simple equation of z to some power equal 1, or minus 1, are known as the roots of unity.
lesson notes:11 nth roots of unity
By making use of the mod arg form of complex numbers, an alternative way of proving some familiar trig identities can be found.
lesson notes:10 complex & trig