Problem

Find the indefinite integral:
\[
\int \frac{e^{7 x}}{e^{7 x}+36} d x
\]
$\frac{1}{7} e^{7 x}\left(e^{7 x}+36\right)+c$
$7 \ln \left(e^{7 x}+36\right)+c$
$\frac{1}{7} \ln \left(e^{7 x}+36\right)+c$
$7 e^{7 x} \ln \left(e^{7 x}+36\right)+C$

Answer

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Answer

Final Answer: The indefinite integral of the given function is \(\boxed{\frac{1}{7} \ln \left(e^{7 x}+36\right)+c}\)

Steps

Step 1 :Find the indefinite integral: \(\int \frac{e^{7 x}}{e^{7 x}+36} d x\)

Step 2 :The integral is a standard form of the integral of a function divided by its derivative plus a constant.

Step 3 :This can be solved by using the formula for the integral of a function divided by its derivative plus a constant, which is the natural logarithm of the absolute value of the function plus a constant.

Step 4 :Final Answer: The indefinite integral of the given function is \(\boxed{\frac{1}{7} \ln \left(e^{7 x}+36\right)+c}\)

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