



 
Hi Trale, What you have done is correct. Euler's Formula
is true for any real number x. You have chosen to evaluate this expression when x = π/2 which gives
and this gives a way to find a decimal approximation for i^{i}. What does this expression give when x = π? What about x = 2π? You should also read RD's response to a similar question? Harley  


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