Use integration by parts to establish a reduction formula for the integral.
A. 
= - 
xn-1 e- x2 + 
B. 
= n xn-1 e- x2 + 2n 
C. 
= - 2xn-1 e- x2 - 2(n - 1) 
D. 
= - 
xn e- x2 + 
Answer: A
Mathematics
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, 
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A. 
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A. 
B. 
C. 
D. 
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