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Peter
  • Member for 12 years, 5 months
  • Last seen more than 9 years ago
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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).

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16
Proof by Contradiction, Circular Reasoning?
Feb 24, 2012
10
Integral of $\int_0^{2\pi}\cos^n(x)\,dx$.
Mar 28, 2012
8
What is $\operatorname{Cov}(\widehat{Y},Y)$?
Dec 27, 2012
7
Ring with 10 elements is isomorphic to $\mathbb{Z}/10 \mathbb{Z} $
Feb 17, 2012
7
Finite Rings whose additive structure is isomorphic to $\mathbb{Z}/(n \mathbb{Z})$
Feb 26, 2012
7
Joint Bernoulli Distribution
Dec 18, 2012
6
Epsilon-Delta Proof for $x^n$ tends to 0
Sep 16, 2012
5
Inverse of Elements Modulo the Maximal Ideals of the Ring of Continuous functions on $[0,1]$
Feb 10, 2012
5
Definition of measurable functions defined w.r.t. topology
Jun 8, 2013
5
What are all of the connected subsets of $\mathbb{Q}$?
Mar 16, 2012
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Why do investors buy stock that had appreciated?