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Express the Integrand as a Sum of Partial Fractions and Evaluate

Question 209

Multiple Choice

Express the integrand as a sum of partial fractions and evaluate the integral.
- 4x3+20x2+32x+13x2(x2+6x+13) dx\int \frac { 4 x ^ { 3 } + 20 x ^ { 2 } + 32 x + 13 } { x ^ { 2 } \left( x ^ { 2 } + 6 x + 13 \right) } d x


A) 7lnx+lnx2+6x+13+12tan1(x+32) +C7 \ln | x | + \ln \left| x ^ { 2 } + 6 x + 13 \right| + \frac { 1 } { 2 } \tan ^ { - 1 } \left( \frac { x + 3 } { 2 } \right) + C
B) 2lnx1x+lnx2+6x+13+12tan1(x+32) +C2 \ln | x | - \frac { 1 } { x } + \ln \left| x ^ { 2 } + 6 x + 13 \right| + \frac { 1 } { 2 } \tan ^ { - 1 } \left( \frac { x + 3 } { 2 } \right) + C
C) 2lnx1x+lnx2+6x+13+12tan1(x+32) +C2 \ln \left| x - \frac { 1 } { x } \right| + \ln \left| x ^ { 2 } + 6 x + 13 \right| + \frac { 1 } { 2 } \tan ^ { - 1 } \left( \frac { x + 3 } { 2 } \right) + C
D) 5lnx+1xlnx2+6x+13+sin1(x+32) +C5 \ln | x | + \frac { 1 } { x } - \ln \left| x ^ { 2 } + 6 x + 13 \right| + \sin ^ { - 1 } \left( \frac { x + 3 } { 2 } \right) + C

Correct Answer:

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