1. ## differentiation

Given $V=\frac{4}{3}{\pi}r^3$.Use the differentiation method to find the small change in v when r increases from 3 to 3.01.

2. Originally Posted by mastermin346
Given $V=\frac{4}{3}{\pi}r^3$.Use the differentiation method to find the small change in v when r increases from 3 to 3.01.
$\frac{\Delta V(r)}{\Delta r} = \frac{V(r + h) - V(r)}{h}$.

Here $h = 0.01$.

Substitute everything in and see how you go.

3. Originally Posted by Prove It
$\frac{\Delta V(r)}{\Delta r} = \frac{V(r + h) - V(r)}{h}$.

Here $h = 0.01$.

Substitute everything in and see how you go.
can u show step by step?

4. Originally Posted by mastermin346
can u show step by step?
I'm sure you can have a go. If you get stuck, show what you have done then I'll help you fix it.