Solution
expand
Solution
Solution steps
Apply binomial theorem:
Expand summation
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Simplify
Rewrite in standard complex form: