User contributions for Rd1452002
28 December 2017
24 September 2017
- 05:5805:58, 24 September 2017 diff hist −1 m 2003 USAMO Problems/Problem 5 →Solution 5
- 05:5705:57, 24 September 2017 diff hist +1,029 2003 USAMO Problems/Problem 5 Add 5th solution using Tangent Line Method