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  • 13-01-2020
  • Mathematics
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How do you integrate [tex]\int\limits \frac{e^2x}{e^x-4} dx[/tex]? Thank you!

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MathPhys
MathPhys MathPhys
  • 13-01-2020

Answer:

eˣ + 4 ln |eˣ − 4| + C

Step-by-step explanation:

∫ e²ˣ / (eˣ − 4) dx

∫ eˣ / (eˣ − 4) eˣ dx

Use u substitution.

u = eˣ − 4

du = eˣ dx

∫ (u + 4) / u du

∫ (1 + 4/u) du

Integrate.

u + 4 ln |u| + C

Plug in:

eˣ − 4 + 4 ln |eˣ − 4| + C

eˣ + 4 ln |eˣ − 4| + C

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