Calculus - Derivatives (1 Viewer)

[xXnukerrrXx]

Can anyone derive this equation properly
f(x)=(r-6)^3-1/(r-6)^3+1

 

[nightweaver066]

With respect to what?

 

[xXnukerrrXx]

with respect to x f'(x)

 

[mitchy_boy]

I'm gonna go ahead and say 0.

 

[mitchy_boy]

Chain rule?

 

[xXnukerrrXx]

you need quotient rule but im kinda stuck :S

 

[SpiralFlex]

Using the quotient rule, I think you mean this:











I shall check my algebra. What does answers say?

 

[hscishard]

with respect to x f'(x)

Well that's fucked..? df(x) / xf'(x) looks pretty hard..
If you mean with respect to x, then that's also fucked because you need an equation with r in terms of x
If you meant differentiate with respect to r, then try this:
f(r)= [(r-6)^3 +1 / (r-6)^3 + 1] -[2/(r-6)^3+1]
= 1 -2/(r-6)^3+1
Then use chain rule

 

[hscishard]

Using the quotient rule,











I shall check my algebra. What does answers say?

Always try manipulating the function first to make it easier to differentiate.It only took me a few seconds to get the answer, lol.

 

[SpiralFlex]

you need quotient rule but im kinda stuck :S

Always try manipulating the function first to make it easier to differentiate.It only took me a few seconds to get the answer, lol.

But OP said use quotient rule?

 

[ohexploitable]

 

[hscishard]

^ that is most correct for that question

But OP said use quotient rule?

Then use the quotient rule after manipulating. It'll give the same thing

 

[SpiralFlex]

Can anyone derive this equation properly
f(x)=(r-6)^3-1/(r-4)^3+1

Meant to be a 4. >_>

 

[mitchy_boy]

This is a stupid question. Burn it.

 

[xXnukerrrXx]

sorry

 

[hscishard]

Meant to be a 4. >_>

What? So you're the asker now? wtf

 

[SpiralFlex]

What? So you're the asker now? wtf

No, I have the question in front of me, OP accidentally wrote a 6 instead of 4.

 

[hscishard]

This is a stupid question. Burn it.

lol...why because you couldn't do it?

 

[hscishard]

No, I have the question in front of me, OP accidentally wrote a 6 instead of 4.

ok, that changes everything...except the r and x dilemma

 

[mitchy_boy]

lol...why because you couldn't do it?

yh m8