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help me plzzzum

Posted: October 21st, 2007, 10:58 pm
by ecstasy
wats 1+1?
ok f'rizzle
find the derivative of this PLOX

find dy/dx for the implicit relation: y^4+x^3y^5-2x^7=13lnsinx
:S where the f*ck do i start...

Re: help me plzzzum

Posted: October 22nd, 2007, 8:14 am
by raulperez
hmmm this is basic stuff

a few product rules, a chain rule there on the right side

all just fundamental differentiation of smaller terms

i've taken the liberty to find the answer both by hand and on my calculator and they match up, but you'll learn more if you solve it yourself... msg me the answers you come up with and i'll let you know if they're right

Re: help me plzzzum

Posted: October 22nd, 2007, 3:46 pm
by Grimes [3rd ID]
That is actually kinda easy, but i forgot what the ^ symbol was..

Method 1. Be a fag and use a calculator (cheater ;( )

Method 2. Guess & Check !!! weeee

Method 3. PEMDAS ?

Re: help me plzzzum

Posted: October 22nd, 2007, 5:27 pm
by fl00d3d
The ^ symbol is used for exponents.

10^2 = 10 to the second power = 10x10 = 100

Re: help me plzzzum

Posted: October 22nd, 2007, 7:44 pm
by raulperez
here's the proper method for finding the solution
solution.JPG
Killer if you honestly have no idea what the problem is asking (as evidenced by the "tips" you gave) i have to ask that you don't make a post at all.... For someone whose understanding of the material may be shaky at best, such absurd tangents only cause more confusion... Love ya buddy, but let me handle the college math :)

Re: help me plzzzum

Posted: October 23rd, 2007, 9:07 pm
by ecstasy
im in 11th grade... yes that looks correct, however i took the test today and i didnt get better than a C n it was too late to read this >.> but yah i get the basic's i just have trouble putting it all togehter. i put the properties and the derivatives of trigonometry functions in my calculator lawl but yah i did ok >.> (i failed) i have a B- rite now and i'll drop to a C after this O_O

Re: help me plzzzum

Posted: October 24th, 2007, 3:11 pm
by farnagain
Killer, I'm learning that now in AP Calc.. pretty sure you don't know :x ( 11th graders ftw ;(! )

Re: help me plzzzum

Posted: October 24th, 2007, 4:40 pm
by StoneCold
farnagain wrote:Killer, I'm learning that now in AP Calc.. pretty sure you don't know :x ( 11th graders ftw ;(! )
Juniors > all W00T

Re: help me plzzzum

Posted: October 24th, 2007, 6:05 pm
by Grimes [3rd ID]
Junior Highz3rs > All

Re: help me plzzzum

Posted: October 30th, 2007, 1:01 pm
by ecstasy
LOL? i got a 80% on the test =D i have a "quest" and im gonna fail it then the quarter final on friday wish me luckzors!