Question

what is the derivitive of e^(x^5-4x)

Answer 1

\[e ^{x^5-4x}(5x^4-4)\]

Answer 2

what would the second derivitive be?

Answer 3

use the product rule and chain rule on branlegr's equation

Answer 4

hmmm tried that... must not be typing right

Answer 5

e^(x^5-4x)*5x^4-4)

Answer 6

\[e^{x^5-4x}(20x+(5x^4-4)^2)\]

Answer 7

you dont need the product rule, all you need is chain

Answer 8

derivative of the outside times the derivative of the inside

Answer 9

e^x's derivative is e^x so consider x = x^5-4x

Answer 10

which becomes your inside function that you take the derivative and multiply it by

Answer 11

\[e^{x^5−4x}(20x^3+(5x^4−4)^2)\]
I made a mistake... this is it

Answer 12

thats wrong. You are making it more complicated then it has to be
Its just the derivative times the inside. Hes just entering it wrong Im pretty sure

Answer 13

nadeen is right ... thank you much

Answer 14

derivative of the outside times the derivative of the inside i mean*

Answer 15

No, you must use the product rule to find second derivative.

Answer 16

why are you taking the second derivative, Is that the problem?

Answer 17

yea nadeem is right, I didnt realize you needed the second derivative

Answer 18

Thanks....... for a second I thought I was going crazy

Answer 19

yes higher order

Answer 20

you never specified the problem correctly creeg
no Nadeem, you are 100% correct

Answer 21

cool

Answer 22

ln(15x7)−3y3=x3ey... guys want to help with thsi one .. i just need y prime.. cant get a right answer... tried like 1 hr on this stupid problem..

Answer 23

15x^7

Answer 24

I thought i did that already

Answer 25

no this is just an implicit problem

Answer 26

ln(x)= 1/x is the derivative
umm -9y^2 y' is that derivative
3x^2
ey wont you have to do product rule

Answer 27

sorry this is it.. ln(15x^7)-3y^3=(x^3)(e^y)

Answer 28

\[(7−3x^3e^y)/x(9y^2+x^3e^y)=dy/dx\] is this not it?

Answer 29

just isolate y' this is easy

Answer 30

yes i know what to do saif... im just having a hard time either typing it in or im missing something

Answer 31

is this webassign?

Answer 32

cause webassign always messes up everything. I feel your pain

Answer 33

webwork .. prob the same.. i hate it

Answer 34

yea i bet!

Answer 35

and nadeen thats not the answer

Answer 36

What is it?

Answer 37

I dont understand Saif623 check my answer out and see if it makes sence...... you are suppose to differentiate implicitly... right?

Answer 38

my bad nadeen .. your right... i had to just fix a typo..

Answer 39

Man..........yall are trippin!

Answer 40

yea i got the same nadeem

Answer 41

you are right

Answer 42

lmao

Answer 43

lol... its been a long week.. how about tangent lines? e^(yx^3)−x(y^3+1)=9 at (-8,0)

Answer 44

i have finals on friday and I am doing your hw

Answer 45

lol

Answer 46

same here Bro...wtf... lol

Answer 47

that one will make my head explode with all my other studying im doing right now

Answer 48

sorry man you are on your own

Answer 49

ya i just got it .. nevermind.. thanks a lot you two.. big help... good luck with the finals..

Answer 50

no problem and Thanks Im gonna need it. 3 finals back to back

Answer 51

ya thats my schedule tomarrow..

Answer 52

Professors are so annoying. I have a webassign due to. Thank GOD I asked for an extension so its due after my finals

Answer 53

my math prof gave a quiz yesterday and this hw is do right now and the test is tomarrow night.. bad planning on their part .. whole class is pissed..

Answer 54

i bet! my professor randomly gives webassign homework so we will have like an hour to do it. Gets annoying

Answer 55

Lol when I see people asking on here problems to do with adding fractions. I wish that was my hw lol!

Answer 56

damn that would be frustrating.. lol ya ... alright well thanks again.. i got some more studying to do so ill cya around on here .. late

Answer 57

lates I got a lot of studying ahead of me to. Good Luck with the exam tomorrow

Answer 58

thanks ...