1. Mar 7, 2010

### JOhnJDC

1. The problem statement, all variables and given/known data

This is from my book.

3. The attempt at a solution

[(v)(22/3)(pi2/3)]/v2/3pi = 22/3(v/pi)1/3

What am I doing wrong? Thanks.

EDIT: I made a mistake in copying over my attempt; fixed now.

Last edited: Mar 7, 2010
2. Mar 7, 2010

### JOhnJDC

I'm beginning to think that my book is wrong and that my attempt is correct. Can anyone confirm?

3. Mar 8, 2010

### Mentallic

You are both correct

4. Mar 8, 2010

### JOhnJDC

I don't see how 22/3(v/pi)1/3 = 2(v/2pi)1/3 Can you explain?

Last edited: Mar 8, 2010
5. Mar 8, 2010

### Mentallic

$$2^{2/3}=2^{1-1/3}$$

does it seem obvious now?

6. Mar 8, 2010

### JOhnJDC

Yes--I see it now. Thanks, Mentallic.