Determine the integral by making an appropriate substitution.
dx
Use the substitution u = ln 5x.
A. 
(ln 5x)2 + C
B. 
(ln 5x)2 + C
C. 
(ln x)(ln 5x)2 + C
D. 
+ C
E. none of these
Answer: A
Mathematics
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A. 512
B. 
C. 81
D. 
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A. 
B. 
C. 
D. none of these
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