Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= 
cotn-1 x - 
B. 
= 
cotn-1 x + 
C. 
= 
cotn-2 x - 
D. 
= - cotn-1 x + 
Answer: A
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inches wide by 
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A. 953
in.
B. 
in.
C. 
in.
D. 
in.