I am a beginning math grad student studying for a written qualifier exam. All questions I ask here are taken from old exams, and none are "homework" problems, i.e. for credit (unless tagged as such).
13 Proof by Contradiction, Circular Reasoning? feb 24 '12
4 Epsilon-Delta Proof for $x^n$ tends to 0 sep 16 '12
3 Norm inequality on Complex Numbers. apr 26 '12
3 Application of Lagrange Multiplier? aug 2 '12