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2006-12-08 00:48:56 · 6 answers · asked by Anonymous in Science & Mathematics Mathematics

6 answers

Integral(e ^ (x/4) dx)

let u = x/4, du = dx / 4, dx = 4 du

Integral(e ^ (x/4) dx) = 4 Integral(e ^ u du) = 4e^u + C = 4e^(x/4) + C

2006-12-08 01:08:24 · answer #1 · answered by Joe Mkt 3 · 1 0

For a linear function u(x) = px + q
integral e^u(x) dx = [1/u'(x)].e^u(x) + c
where c is an arbitrary constant of integration. In this case integral e^(x/4) dx = 4e^(x/4) + c

to assure yourself differentiate the answer 4.e^(x/4) + c
then you will have e^(x/4).

2006-12-08 01:06:05 · answer #2 · answered by yasiru89 6 · 0 0

easy the integate of e^u is e^u /(du/dx )

u= 4x so du/dx = 4

and the integral is (e^4x)/4

2006-12-08 00:53:15 · answer #3 · answered by maussy 7 · 0 0

Joe Willy Neckbone says, "I don't rightly know the answer to your question, but I will be right here waiting for you to ask a question that I do know the answer to."

2006-12-08 00:55:50 · answer #4 · answered by joewillyneckbone 2 · 0 0

∫e^(x/4) dx =

u = x/4
du = dx/4
4du = dx

=>
∫e^(x/4) dx = 4∫e^u du = 4e^u + c

=>
∫e^(x/4) dx = 4e^(x/4) + c

2006-12-08 01:03:08 · answer #5 · answered by Luiz S 7 · 1 1

int(e^ax dx) = e^ax / a + c



Luiz S answer is so wrong it's amazing.

2006-12-08 00:50:54 · answer #6 · answered by nckobra40 3 · 0 0

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