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Evaluate the Integral (x+7)2tan1x+(4x22)(x+7)(x2+1)(x+7)2dx\int \frac { ( x + 7 ) ^ { 2 } \tan ^ { - 1 } x + ( 4 x - 22 ) ( x + 7 ) } { \left( x ^ { 2 } + 1 \right) ( x + 7 ) ^ { 2 } } d x

Question 329

Multiple Choice

Evaluate the integral.
- (x+7) 2tan1x+(4x22) (x+7) (x2+1) (x+7) 2dx\int \frac { ( x + 7 ) ^ { 2 } \tan ^ { - 1 } x + ( 4 x - 22 ) ( x + 7 ) } { \left( x ^ { 2 } + 1 \right) ( x + 7 ) ^ { 2 } } d x


A) (tan1x) 22lnx+7+12ln(x2+1) +C\frac { \left( \tan ^ { - 1 } x \right) ^ { 2 } } { 2 } - \ln | x + 7 | + \frac { 1 } { 2 } \ln \left( x ^ { 2 } + 1 \right) + C
B) (tan1x) 22lnx+75tan1x+ln(x2+1) +C\frac { \left( \tan ^ { - 1 } x \right) ^ { 2 } } { 2 } - \ln | x + 7 | - 5 \tan ^ { - 1 } x + \ln \left( x ^ { 2 } + 1 \right) + C
C) (tan1x) 223tan1x+12ln(x2+1) +C\frac { \left( \tan ^ { - 1 } x \right) ^ { 2 } } { 2 } - 3 \tan ^ { - 1 } x + \frac { 1 } { 2 } \ln \left( x ^ { 2 } + 1 \right) + C
D) (tan1x) 22lnx+73tan1x+12ln(x2+1) +C\frac { \left( \tan ^ { - 1 } x \right) ^ { 2 } } { 2 } - \ln | x + 7 | - 3 \tan ^ { - 1 } x + \frac { 1 } { 2 } \ln \left( x ^ { 2 } + 1 \right) + C

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