Considering $ (1+i)^n - (1 - i)^n $, Complex Analysis
89758
Is there a formula for $(1+i)^n+(1-i)^n$?
5526
Prove that $ℤ[i]^*= \{1,-1,i,-i\}$
112348
Defining the Complex numbers
51047
Analytic continuation of a power series 2
88708
An integration of product $(1-x^n)$
74596
Coefficient growth in the power series $\sum u_n z^n = e^{1/(1-z)}$?
92390
The meaning of notation $\subset\subset$ in complex analysis
101320
How to tell $i$ from $-i$?
110054
An easy question on complex
50057
Complex analysis and Cauchy Residue theorem
27062
Given complex $|z_{1}| = 2\;\;,|z_{2}| = 3\;\;, |z_{3}| = 4\;\;$ : when and what is $\max$ of $|z_{1}-z_{2}|^2+|z_{2}-z_{3}|^2+|z_{3}-z_{1}|^2$
150229
Find all the values of $(1+i)^{(1-i)}$
63474
Showing $\sum_{i = 1}^n\frac1{i(i+1)} = 1-\frac1{n+1}$ without induction?
83014
Holomorphic function interpolating $e^{-n}$
92595
A problem regarding the in-equality of complex numbers .
109760
Showing that the product of all $n$th Roots of Unity is $(-1)^{n+1}$
101017
What is the sum of $\sum\limits_{i=1}^{n}ip^i$?