Question

is e^(-u) equal to 1/e^(u)?

Answer 1

yes.
x^(-m) = 1/ x^m

Answer 2

Hey, Oh My God, you are right dear..

Answer 3

it is also applicable to e?

Answer 4

yes, to any variable/number.

Answer 5

You can think of it as too :

\[\frac{1}{e^{-u}} = e^u\]

Answer 6

ok thanks a lot! :)

Answer 7

welcome ^_^

Answer 8

And I am not typing...

@hartnn