HEY!

I'm new here and I was wondering how to derive something like:

Attachment 25538

I can do the chain and product rule however the 3 has confused me...

Any working would be appreciated (Bow)

Challenge accepted?

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- Nov 3rd 2012, 07:35 PMasdfpjdfjHow do you derive this...?
**HEY!**

I'm new here and I was wondering how to derive something like:

Attachment 25538

I can do the chain and product rule however the 3 has confused me...

Any working would be appreciated (Bow)

Challenge accepted? - Nov 3rd 2012, 09:42 PMchiroRe: How do you derive...
Hey asdfpjdfj.

d/dx (a*f(x)) = a*d/dx(f(x)). - Nov 3rd 2012, 11:22 PMhollywoodRe: How do you derive...
Yes, your function, $\displaystyle f(x)=\frac{8(10-x)^2\cdot\sqrt{5(x-5)}}{3}$ can be written $\displaystyle f(x)=\frac{1}{3}\left(8(10-x)^2\cdot\sqrt{5(x-5)}\right)$, so you use chiro's suggestion with $\displaystyle a=\frac{1}{3}$.

- Hollywood - Nov 4th 2012, 04:25 AMPlatoRe: How do you derive this...?