Question

how do i get the derivative of y=x^4e^x

Answer 1

hey, good morning, mimi

Answer 2

use the product rule :)

y' = u'v + uv'

where :

- u = x^4
- u' = 4x^3
- v = e^x
- v' = e^x

just plug them in ^_^

Answer 3

good morning, when is your exam? what time?

Answer 4

in 3 hours

Answer 5

how do you feel?

Answer 6

I am just chilling now :)

Answer 7

great

Answer 8

did you eat good?

Answer 9

I got x^4e^x+4x^3e^x...is that right???

Answer 10

sleep good?

Answer 11

no, but I will in a moment, Mom

Answer 12

yep roam :) that's correct ^_^

Answer 13

>_> haha, very funny, I'm nervous lol

Answer 14

well, what are you waiting for, go EAT, heavy breakfast go go go

Answer 15

don't worry Mom, I will eat good, relax, get all my things ready, my ID, my maths instruments, I will be alright

Answer 16

stop calling me mom lol, did you sleep well?

Answer 17

=D alright, I am going to eat now, bye

Answer 18

yes, slept well

Answer 19

okay, good good

Answer 20

wait a min, what time did you go to bed?

Answer 21

so if i set it to zero, what would my critical numbers be??
sorry i am really bad at exponential and log functions

Answer 22

you'll have to factor first to find the zeros, lol it's alright, when you factor and get the zeros, your zeros will be the critical numbers and to find the points , you'll have to plug them in the original function to get the y's :)

Answer 23

ok thanks sstarica, you are really helping me out tonight! :)

Answer 24

np :) good luck!

Answer 25

Good luck today, oktal

Answer 26

he went to eat lol

Answer 27

oh

Answer 28

i should be doing my work anyway

Answer 29

:)

Answer 30

:)

Answer 31

done?

Answer 32

>_> eat well

Answer 33

yeah..

Answer 34

now I am all ready :)

Answer 35

all I have to do is go to the university campus, find the place where the exams will take place and do my duty :)

Answer 36

great ^_^ , don't panic if you don't know how to solve one question, if you take alot of time on it, skip it and proceed to the other questions, when you're done and there's still time, go back to the questions that you've skipped

Answer 37

and you'll do just fine ^_^

Answer 38

Good luuuuuuuuuccckkkkk

Answer 39

lol , yep :)

Answer 40

You'll be fine. Just be strategic. Don't spend too much time on a question if you're stuck.

Answer 41

exactly~

Answer 42

oh, keep a bottle of cold water near you

Answer 43

I dont keep bottles of cold water near me... when I lived in Africa for some time, I used to because it is so freaking hot there and my body needs alot, but here, in this cold mystical country, I might prefare hot chocolate instead :)

Answer 44

If I were you, I'll stay away from hot chocolate before any test, it has milk and this will make you drowsy

Answer 45

Last semester, before my calculus I midterm exam in an hour, I drank hot chocolate assuming it to give me energy, but instead I got drowsy and sleepy and messed up the test

Answer 46

nah.. I wont take anything to the exam.... because i will concentrate really hard on the questions and I will forget to drink anyway...

Answer 47

you'll have breaks right?

Answer 48

no

Answer 49

If you can get your hands on Powerade or something, drink that

Answer 50

how long is it? ._.

Answer 51

the exam is VERY small and short

Answer 52

lol, loki that's not good for the heart, not even redbull ._.

Answer 53

powerade just replaces electolytes

Answer 54

good, small short, easy simple, and you'll be done in an hour :)

Answer 55

his nerves have to work

Answer 56

his nerves are working just fine after such a heavy breakfast

Answer 57

I don't like those power drinks

Answer 58

not healthy

Answer 59

it is only 3.5 hours

Answer 60

take chocolate with you just in case

Answer 61

and thats maths, some physics, some chem, and an engish essay and motivation letter

Answer 62

too much concentration will cause you to get hungry

Answer 63

especially when you have 3 sciences

Answer 64

I guess Red Bull is a better choice, once I remember drinking like 4 cans, and it made me focus like a laser :)

Answer 65

._. redbull is NOT GOOD

Answer 66

and 4 cans? are you crazy?!

Answer 67

you got luck in not getting a heart attack that's for sure.

Answer 68

lucky*

Answer 69

red bull's awesome

Answer 70

who cares if it is good or not, what I care about is to concentrate and have an energetic mind

Answer 71

correct

Answer 72

yeah, you'll care when you fall ill won't you?

Answer 73

your heart repairs

Answer 74

no it doesn't

Answer 75

don't take it that slightly

Answer 76

it does...i saw it on oprah once

Answer 77

you have to take care of yourself , both of you.

Answer 78

well oprah is not always true

Answer 79

the doctor was

Answer 80

all organs can slowly repaire themselves, yeah I saw it somewhere too... the guys name was Paul Bragg or something, he was this health pioneer

Answer 81

I know someone who has a weak heart, that cannot be repaired

Answer 82

that's genetic, though

Answer 83

4 cans? what has gotten into you.

Answer 84

his repair mechanisms are shot from birth

Answer 85

not genetic loki

Answer 86

it just happened

Answer 87

my repair mechanisms are GREAT, I once got "messed up" and had some bones broken in the leg and fist and wrist... but in about 1 month I was able to perform just as I did before....

Answer 88

effects won't show up now, but they will certainly will later , just be careful , try not to drink those power drinks too much guys.

Answer 89

you are young, what about later?

Answer 90

it'd be just one drink of red bull ... ;)

Answer 91

it is not like I drink red bull like water every day.... that would waste too much money, so I can't :)

Answer 92

well, try not to drink too much , both

Answer 93

AND my dear, I don't drink any alcohol, so I have to "conpensate" with Red Bull :)

Answer 94

yeah I know, again not too much

Answer 95

^_^