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Express the Integrand as a Sum of Partial Fractions and Evaluate

Question 96

Multiple Choice

Express the integrand as a sum of partial fractions and evaluate the integral.
- 75x2+50x+3(25x2+1) 2dx\int \frac { 75 x ^ { 2 } + 50 x + 3 } { \left( 25 x ^ { 2 } + 1 \right) ^ { 2 } } d x


A) 35tan1(25x) +125x2+1+C\frac { 3 } { 5 } \tan ^ { - 1 } ( 25 x ) + \frac { 1 } { 25 x ^ { 2 } + 1 } + C
B) ln25x2+1125x2+1+C\ln \left| 25 x ^ { 2 } + 1 \right| - \frac { 1 } { 25 x ^ { 2 } + 1 } + C
C) 35tan1(5x) 125x2+1+C\frac { 3 } { 5 } \tan ^ { - 1 } ( 5 x ) - \frac { 1 } { 25 x ^ { 2 } + 1 } + C
D) 35tan1(5x) 125x2+11(25x2+1) 2+C\frac { 3 } { 5 } \tan ^ { - 1 } ( 5 x ) - \frac { 1 } { 25 x ^ { 2 } + 1 } - \frac { 1 } { \left( 25 x ^ { 2 } + 1 \right) ^ { 2 } } + C

Correct Answer:

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