Express the integrand as a sum of partial fractions and evaluate the integral.
A. 
tan-1 
+ ln 
- 
+ C
B. tan-1 
- 
- 
+ C
C. 
tan-1 
+ 
- 
+ C
D. 
tan-1 
- 
+ 
+ C
Answer: C
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A. Invalid B. Valid
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