Calculus

[Bobby Sands]

Use the quotient rule to find f'(x) from f(x).

f(x) = g(x)/h(x)

f(x) = 4/(x^2+1) Hence g(x) = 4 and h(x) = (x^2+1)

Then f'(x) =

g'(x)h(x)-g(x)'h(x)
-----------------
h(x)^2

So f'(x) =

(0)(x^2+1)-(4)(2x)
-------------------
(x^2+1)^2


Hence =

-8x
-----------
(x^2+1)^2

Now do the same for f '' (x).

Albert Einstein?

 

[7 Syns]

2Pax is correct and like some said wolframalpha.com is a great site for help.

I'm into my 2nd year civil engineering course but I also do electrical units.. I'm forever doing calculus..

 

[Shadows]

^Yah, that site is great, except it wont get the 2nd derivative, from what I can see.

 

[7 Syns]

^Yah, that site is great, except it wont get the 2nd derivative, from what I can see.

maybe you're not typing it in properly? not sure, it usually works for me. best of luck man, add me on facebook.. jt dacosta... u too 2pax, seems like we're in the same boat.

 

[masta247]

yeah fortunately I passed that calculus stuff. Maybe I had it a bit easier since we had derivatives in high school but then harder things in uni.
This semester I have advanced mathematical analysis pt.2.. which sucks massive balls. But fortunately that's my last math course.

 

[Shadows]

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...damn u are pretty high in math dude. I never knew, what are u majoring in again?

 

[Flipmo]

You're all eggheads.

 

[Shadows]

You're all eggheads.

 

[Flipmo]

LMAO.

I just got owned

 

[masta247]

...damn u are pretty high in math dude. I never knew, what are u majoring in again?

IT and Information Management/Business. However I really hated math and I only study it to pass.