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Andrew Paul's user avatar
Andrew Paul's user avatar
Andrew Paul
  • Member for 5 years, 7 months
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2 votes
Accepted

Closure of a set $\overline{A}:=\{x\in T: U\cap A \neq \emptyset \text{ for every open set U that contains x}\}$

1 vote

The function $-\log x$ is a convex function, but its minimum only exists at infinity. How is this possible?

1 vote

A closed set contains all its boundary points.

1 vote

Shortest distance between ellipse and a line

1 vote
Accepted

Number of solution of three variable equation

1 vote

Are powers less than or equal to zero considered in Newton Sums?

1 vote

Connection between quadratic equations and complex numbers where $\Delta > 0$ (of the quadratic formula)

0 votes

How do I prove or disprove that $n^{\log_2 c} = c^{\log_2 n}$

0 votes
Accepted

How can I prove that this function is bounded?

0 votes

Epsilon delta proof question

0 votes

Calculus I Problem , Need Help

0 votes

Homotopy from $f(x,y) = (x,y)$ to $g(x,y) = -(x,y)$