How to deduce the following complex number problem
114418
A deduction from $x^n-1=(x^2-1)\prod_{k=1}^{(n-2)/2}[x^2-2x\cos{\frac{2k\pi}{n}}+1]$
38674
Do complex numbers really exist?
35307
Comparing complex numbers
143123
finding an argument of a complex number
73907
Condition for 3 complex numbers to represent an equilateral triangle
83359
Complex number identity by trigonometry
140968
Proof for Property of Complex Numbers
62878
Expressing polar complex numbers in cartesian form
18959
Quadratic Formula in Complex Variables
56341
Solving complex numbers equation $z^3 = \overline{z} $
45711
Inequality with complex numbers
71566
Positive and negative complex numbers?
141360
math behind complex numbers C||RLC
137718
Prove that the complex expression is real
81571
Complex Exponent of Complex Numbers
156782
Confused about complex numbers
81585
What is the square root of complex number i?