- Thread starter jpg
- Start date

- Joined
- Nov 12, 2017

- Messages
- 10,601

Sure. But in order to help, we'll need to see the entire problem as given to you, and some information to help us see what help you need (such as whatever work you've tried, or a specific question about it.View attachment 24299

can you help me with exercais 2

I don't know what "inner and outer rays of comma" means, so you'll have to tell us.

- Joined
- Apr 22, 2015

- Messages
- 2,924

Hi jpg. I can't help with finishing the exercise, yet, because the exercise statement is missing. However, I'd like to comment on your simplification steps in part 1, starting with \(v = \frac{14 \pi^2 \cdot 6^2}{4}\).can you help …

When simplifying a rational expression containing squares of constants, go ahead and square the constant right away. Doing that could eliminate several of your steps because it allows reducing the ratio to lowest terms up front.

\(\displaystyle v = \frac{14 \pi^2 \cdot 36}{4}\)

\(\displaystyle v = \frac{14 \pi^2 \cdot \cancel{36}^9}{_1\cancel{4}}\)

\(\displaystyle v = 126 \pi^2 \; \text{cm}^3\)