SOLUTION: If {{{ f(x) = e^(-x)^(-1) }}}. Calculate f'(2)

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Question 1163398: If +f%28x%29+=+e%5E%28-x%29%5E%28-1%29+. Calculate f'(2)
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
f(2) = +e+%5E+%28-2%29+%5E+%28-1%29+ = +e+%5E+%28-1%2F2%29+ = .6065306597

this is because +%28-2%29+%5E+-1+ is equal to +-1%2F2+