Question

Find the critical point for ::::::::

Answer 1

\[f(x)= x e ^{-x}\]

Answer 2

the derivative is \[e ^{-x}-xe ^{-x}\] .. am i right ?

Answer 3

Almost correct.

Answer 4

what do u mean almost .. -_-?

Answer 5

Actually it is correct, I didn't notice the xe^-x

Answer 6

there is 1 critical point

Answer 7

which is ... ?

Answer 8

x=1

Answer 9

how did u know that .. from where u got it ..

Answer 10

set it equal to 0 and solve

Answer 11

okie .. can u show me ?

Answer 12

e^−x−xe^−x=0

Answer 13

okie i'l see what i can do with it o_o

Answer 14

sankiyo anyway ^-^

Answer 15

use ln
;)

Answer 16

e^(-x)=xe^(-x)