Question

integral of 1/e^x dx

Answer 1

1/e^x = e^(-x)

Answer 2

can you do it now

Answer 3

\[\frac{1}{e^{x}}=e^{-x}\]and then substitute\[u=-x\]

Answer 4

@ncorrea92 did you understand the problem?

Answer 5

why would we substitute u = -x?

Answer 6

if you already know the antiderivative of e^(ax) then you dont need any substitution

Answer 7

its just e^-x then ?

Answer 8

well integral e^(ax) = (1/a)e^(ax)

so here integral e^(-x) = -e^(-x)

Answer 9

oh alright thanks

Answer 10

yw =)