Question: A question about obtaining result in integral for x^k

Excuse me,

 

  I have the following input

***

fff:=x1^k;
int(fff,x1=0..x2);

***

I would like to obtain

1/(k+1)* (x2^(k+1)), k<>-1

 

but maple gives me just the same integral. Is there any way to get the expression?

 

Thank you!

 

 

 

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