Question

Find a number which satisfies the equation $|x^6-3x^3+5x| \leq Q$ whenever $|x|$ $\leq$ $2$?

score 627 · Answer 1 · 2026-04-02 00:15:45

Find a number which satisfies the equation $|x^6-3x^3+5x| \leq Q$ whenever $|x|$ $\leq$ $2$?

Published on 02 Apr 2026 - 0:15

score 189 · Answer 2 · 2026-03-26 07:38:51

Suppose that every nonempty subset $X$ bounded from above has a supremum. Then every nonempty subset $Y$ bounded from below has an infimum

score 647 · Answer 3 · 2026-03-27 07:47:07

647

Views

A simple counter example for Open Mapping Theorem when Linearity Assumption is Dropped

Published on 27 Mar 2026 - 7:47

score 118 · Answer 4 · 2026-04-09 10:52:20

118

Views

Question on group action of $\mathbb{Z}/6\mathbb{Z}$ on a regular hexagon

Published on 09 Apr 2026 - 10:52

score 245 · Answer 5 · 2018-09-24 22:31:36

245

Views

Find $\lim_{x\rightarrow 0} \frac{5^x-3^x}{3^x-2^x}$

Published on 24 Sep 2018 - 22:31

score 77 · Answer 6 · 2026-03-25 01:40:07

77

Views

On proving that if $\prod_{\alpha \in \Lambda}X_\alpha$ is $T_i$ with $i \in \{3,4\}$ then $X_\alpha$ is $T_i$ for all $\alpha$.

Published on 25 Mar 2026 - 1:40

score 454 · Answer 7 · 2018-09-24 23:13:56

454

Views

Combinatorics - $k$ people seated in a line of $n$ chairs

Published on 24 Sep 2018 - 23:13

score 209 · Answer 8 · 2026-04-02 02:00:53

209

Views

Why isn't equality in the triangle equality true when $x = y$?

Published on 02 Apr 2026 - 2:00

score 66 · Answer 9 · 2026-04-09 02:50:41

66

Views

Is my proof correct of 3|a+1 being false.

Published on 09 Apr 2026 - 2:50

score 347 · Answer 10 · 2026-04-03 06:58:33

347

Views

Set of bounded functions closed in B(X,R)

Published on 03 Apr 2026 - 6:58

score 37 · Answer 11 · 2026-03-29 20:21:50

37

Views

Laurent expansion of $f(x)=\frac{1}{(z-1)(z-2)^2}$

Published on 29 Mar 2026 - 20:21

score 252 · Answer 12 · 2026-04-08 22:45:05

252

Views

Determine where this function is continuous - floor function

Published on 08 Apr 2026 - 22:45

score 79 · Answer 13 · 2026-03-26 06:01:37

79

Views

Laurent series for $f(z)=\frac{1}{z-2i}-\frac{1}{z+i}$ that converges at 3

Published on 26 Mar 2026 - 6:01

score 1.1k · Answer 14 · 2026-03-28 09:53:27

1.1k

Views

The order of $Hg\in G/H$ divides the order of $g\in G$ when $H$ is normal in $G$ and $G$ is finite.

Published on 28 Mar 2026 - 9:53

score 385 · Answer 15 · 2026-03-28 11:03:52

385

Views

Show that a power series is equivalent to a Taylor series.

Published on 28 Mar 2026 - 11:03

List Question

Find a number which satisfies the equation $|x^6-3x^3+5x| \leq Q$ whenever $|x|$ $\leq$ $2$?

Suppose that every nonempty subset $X$ bounded from above has a supremum. Then every nonempty subset $Y$ bounded from below has an infimum

A simple counter example for Open Mapping Theorem when Linearity Assumption is Dropped

Question on group action of $\mathbb{Z}/6\mathbb{Z}$ on a regular hexagon

Find $\lim_{x\rightarrow 0} \frac{5^x-3^x}{3^x-2^x}$

On proving that if $\prod_{\alpha \in \Lambda}X_\alpha$ is $T_i$ with $i \in \{3,4\}$ then $X_\alpha$ is $T_i$ for all $\alpha$.

Combinatorics - $k$ people seated in a line of $n$ chairs

Why isn't equality in the triangle equality true when $x = y$?

Is my proof correct of 3|a+1 being false.

Set of bounded functions closed in B(X,R)

Laurent expansion of $f(x)=\frac{1}{(z-1)(z-2)^2}$

Determine where this function is continuous - floor function

Laurent series for $f(z)=\frac{1}{z-2i}-\frac{1}{z+i}$ that converges at 3

The order of $Hg\in G/H$ divides the order of $g\in G$ when $H$ is normal in $G$ and $G$ is finite.

Show that a power series is equivalent to a Taylor series.

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