Use a table of integrals with forms involving $e ^ { u }$ to find the integral. $\int \frac { - 7 } { 1 + e ^ { - 6 x } } d x$
A) $7 x - \frac { 7 } { 6 } \ln \left( 1 - e ^ { - 6 x } \right) + C$
B) $7 x - \frac { 7 } { 6 } \ln \left( 1 + e ^ { - 6 x } \right) + C$
C) $- 7 x + \frac { 7 } { 6 } \ln \left( 1 + e ^ { - 6 x } \right) + C$
D) $- 7 x + \frac { 7 } { 6 } \ln \left( 1 - e ^ { - 6 x } \right) + C$
E) $- 7 x - \frac { 7 } { 6 } \ln \left( 1 + e ^ { - 6 x } \right) + C$

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The Answer of Use a table of integrals with forms involving $e ^ { u }$ to find the integral. $\int \frac { - 7 } { 1 + e ^ { - 6 x } } d x$
A) $7 x - \frac { 7 } { 6 } \ln \left( 1 - e ^ { - 6 x } \right) + C$
B) $7 x - \frac { 7 } { 6 } \ln \left( 1 + e ^ { - 6 x } \right) + C$
C) $- 7 x + \frac { 7 } { 6 } \ln \left( 1 + e ^ { - 6 x } \right) + C$
D) $- 7 x + \frac { 7 } { 6 } \ln \left( 1 - e ^ { - 6 x } \right) + C$
E) $- 7 x - \frac { 7 } { 6 } \ln \left( 1 + e ^ { - 6 x } \right) + C$

Use a Table of Integrals with Forms Involving eue ^ { u }eu

Use a Table of Integrals with Forms Involving $e ^ { u }$