Tutorials Posted by chal1974
chal1974 from
chal1974's Posted Tutorials
| Bounty | Category | Question | Tutorial | Purchases | Date Posted |
|---|---|---|---|---|---|
| $0.25 | Mathematics | cos(x tan(x ... simplify | Simplified
... using fundamental identites. cos... | May. 16, 2011 at 11:49:40AM | |
| $1.00 | Mathematics | imagine that you have two telephone plan | best plan
...mins. The best plan would be to use the second method... | May 11, 2011 at 3:25:31PM |