Hello.
I wonder wheather there is the analytic solution of the following integral:
integral ln(1 + exp(ax)) dx
where ln is the natural logarithm and a is a constant.
I tried to change variable with y = exp(ax); from
a exp(ax) dx = dy
I get
(1 / a) integral (1 / y)ln(1 + y) dy
but again I can’t remember well how to proceed (supposed my calculations are
right!).
thank you for the help
Stefano
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