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- 00:04, 19 April 2009 (diff | hist) . . (+1,695) . . N 1984 IMO Problems/Problem 1 (New page: ==Problem== Let <math>x</math>, <math>y</math>, <math>z</math> be nonnegative real numbers with <math>x + y + z = 1</math>. Show that <math>0 \leq xy+yz+zx-2xyz \leq \frac{7}{27}</math> =...)
- 00:20, 24 January 2009 (diff | hist) . . (+19) . . N User talk:Isocahedron (New page: Hey people: I rock!) (current)
- 00:19, 24 January 2009 (diff | hist) . . (+28) . . Algebra