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Question: Product of “n” variables in a function

Question: Product of “n” variables in a function

AndreMenezes 15 Maple
product
July 17 2016
1

I want calcule the product of this function for x = x1, x2, ... xn:
       
    fx:= theta*exp(-theta*x)

I tried this:

    prod:= product(fx, x=1..n)

However this consider the integer values of x's, i.e, x = 1,2,3...,n.

I don't know how to make x values undefined. Is there anyway?
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