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Tag Archives: math contests
2012 Math Prize for Girls: #1620
Here are comments and solutions to (some of) the problems on the 2012 Math Prize for Girls contest that took place at MIT on September 22.
2011 Math Prize for Girls: #15
Here are comments and solutions to problems 15 on the 2011 Math Prize for Girls contest that took place at MIT on September 17, 2011. Earlier I blogged comments and solutions for problems 610, problems 1115, and problems 1620.
2011 Math Prize for Girls: #610
Here are comments and solutions to problems 610 on the 2011 Math Prize for Girls contest that took place at MIT on September 17, 2011. Earlier I blogged comments and solutions for problems 1115 and problems 1620.
2011 Math Prize for Girls: #1115
Here are comments and solutions to problems 1115 on the 2011 Math Prize for Girls contest that took place at MIT on September 17, 2011. Click here for comments and solutions for problems 15. Click here for comments and solutions for … Continue reading
Back to Basics: Arctangent
Recently, a student asked me about problem #8 on the 2008 AIME 1 competition, which is reproduced here for your convenience: Find the positive integer such that . She was able to solve this using the sum of arctangents identity … Continue reading
2011 Math Prize for Girls: #1620
Here are comments and solutions to (some of) the problems on the 2011 Math Prize for Girls contest that took place at MIT on September 17. I’m going to try to resolve the problems in a straightforward, lotech way. I might indicate … Continue reading
Math Contests v. Mathematics
In math contests, participants match wits against humans (the contest designers). In mathematics, participants match wits against the mathiverse!