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- Apr 30th 2008, 08:12 PM #1

- Joined
- Apr 2008
- Posts
- 26

## What could this mean?

Does anyone have any clue what these questions are asking for? This doesn't make sense to me, and I can't find this notation in my text. Thanks.

(a) Determine

(b) Determine

(c) Find all solutions of -23 (mod 240)

Thanks in advance!

A walk through would be great.