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Question: undefined and defined at the same time

Question:undefined and defined at the same time

Zeineb 530 Maple 17
integration undefined
April 12 2021
2

Dear all

When I compute 
int( sin(log(x)),x=0..2) 
I obtain an exact value of the integral 
but one I compute 
int( sin(log(x+1)),x=-1..1) 
I obtain undefined integral

The two integrals are the same, using the change of variable z=x+1

Many thinks
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