Evaluate the integral.
-$$\int 3 \mathrm { e } ^ { - 7 x } \mathrm { dx }$$
A) $3 e ^ { - 7 x } + C$
B) $- \frac { 1 } { 2 } e ^ { - 7 x + 1 } + C$
C) $- \frac { 3 } { 7 } e ^ { - 7 x } + C$
D) $- \frac { 3 } { 14 } e ^ { - 7 x ^ { 2 } } + C$

Question

Quizplus · Accepted Answer

Using the power rule of integration, we get 
$$\int 3 \mathrm { e } ^ { - 7 x } \mathrm { dx }=-\frac{3}{7} \mathrm{e}^{-7x}+C$$
Therefore, the correct choice is C.

Evaluate the Integral ∫3e−7xdx\int 3 \mathrm { e } ^ { - 7 x } \mathrm { dx }∫3e−7xdx

Evaluate the Integral $\int 3 \mathrm { e } ^ { - 7 x } \mathrm { dx }$