Mathematics
Diane Vanderwaif's user avatar
Diane Vanderwaif's user avatar
Diane Vanderwaif's user avatar
Diane Vanderwaif
  • Member for 10 years, 8 months
  • Last seen more than 8 years ago
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All Questions Answers
Score Newest
question
22
Prove that the min and max of 2 continuous function are continuous
Oct 17, 2013
question
10
closed and open set - set $S$ is open if and only if its complement is closed?
Apr 23, 2013
question
9
Use the divergent theorem to verify the volume of a circular cone
May 16, 2014
question
9
Prove that if a function $f$ has a jump at an interior point of the interval $[a,b]$ then it cannot be the derivative of any function.
Nov 12, 2013
question
8
If $σ^2$ is the identity map from $G$ to $G$, prove that $G$ is abelian.
Jan 23, 2014
question
7
Suppose that $f$ is analytic on a close curve γ. Prove or disprove $\int_\gamma \overline{f(z)}f'(z)dz$ is purely imaginary.
Mar 21, 2015
question
7
Limit superior inequalities proof: $\limsup_{n\to \infty} \left(\frac{a_1+a_{n+1}}{a_n}\right)^n\ge e$
Sep 28, 2013
question
7
Prove that if $S^k$ has a non vanishing vector field, then its antipodal map is homotopy to the identity if $k$ is even.
Oct 5, 2014
question
7
Find the error in following reason $(-z)^2=z^2 \implies \log(-z)^2=\log(z)^2 \implies2\log(-z)=2\log(z)\implies \log(-z)=\log(z)$
Feb 12, 2015
question
7
Smooth function proof
Sep 19, 2014

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