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JustANoob
  • Member for 4 years, 11 months
  • Last seen more than a week ago
  • Lund, Sweden
3 votes

A composite function problem

2 votes
Accepted

How are "$f$ integrable" and "$\vert f \vert$ integrable" related?

2 votes
Accepted

Math riddle: What is the smallest positive possible outcome?

1 vote
Accepted

Show that $\text{Null}\begin{bmatrix}\vec{a}^T \\ \vec{b}^T \\ \vec{c}^T\end{bmatrix}=\text{Null}\begin{bmatrix}\vec{a}^T \\ \vec{b}^T \end{bmatrix}$

1 vote

How can I solve this recurrent equation?

1 vote
Accepted

Higher dimension space of the real number

1 vote
Accepted

Does this recurrence relation of exponentials diverge?

1 vote

How can $\tan x > 2$ be solved?

1 vote

I'm having trouble simplifying this equation, can someone help me and let me know what kind of rules were applied to this?

1 vote
Accepted

how would I go about finding the distance between two points on earth

1 vote

Let $X$ be a normed space and $x_0, x_1 \in X$. Let $l \in (0,1)$ be fixed. Prove, that the sequence $x_{n+1}=l x_{n}+(1-l) x_{n-1}$ converges.

1 vote

what is the probability of rolling a 5 sided die 5 times and getting a 1 any number of times

1 vote

Prove that a set is not strictly convex

0 votes

Bounding the difference of step functions

0 votes

The boundary of $(-1,2)\cup[3,\infty)$ in $\mathbb{R}$

0 votes

Find $\sum f_n(x)$

0 votes

Finding distance between two intersecting circles by areas

0 votes

Least $k$ such that $x_1<x_2<x_3<x_4\implies (x_2-x_1)^2 + (x_3-x_2)^2 + (x_4-x_3)^2 + (x_4-x_1)^2 < k\left[ (x_3-x_1)^2 + (x_4-x_2)^2 \right]$