Question

Express in the form A + iB:

[(1+sin a + i cos a)/(1 + sin a - i cos a)]^n

Answer 1

\[\frac{(1+\text{Sin}[a]+i*\text{Cos}[a])^N}{(1+\text{Sin}[a]-i*\text{Cos}[a])^N}\]

Answer 2

yes this was the question

But how to solve it ?

Answer 3

Imranmeah bhaiya please help me !!

Answer 4

I am not sure if this can be expanded