updates
Taking a derivative of a magnitude of a vector
I have found several questions including this as a step in the explanation, but have not been able to find an explicit explanation of how to take a deriva...
Apr 17, 2026
Archive: Updates
updates
Parallel Lines Proof
How do you prove that two parallel lines never cross? By definition this is implied, but how do you prove it for any pair of parallel lines? In other word...
Apr 17, 2026
updates
How can you prove the triangle sum theorem?
Some things to consider: -This theorem has proved very, very many theorems many of which with trig, so you can't use any theorems that have been prov...
Apr 17, 2026
updates
What's the relationship between a measure space and a metric space?
Definition of Measurable Space: An ordered pair $(\Omega, \mathcal{F})$ is a measurable space if $\mathcal{F}$ is a $\sigma$-algebra on $\Omega$. Definiti...
Apr 17, 2026
updates
How does linear algebra help with computer science?
I'm a Computer Science student. I've just completed a linear algebra course. I got 75 points out of 100 points on the final exam. I know linear ...
Apr 17, 2026
updates
Regular octagon inscribed in a square
Problem: The corners of a 2 meter square are cut off to form a regular octagon. What is the length of the sides of the resulting octagon? From the picture...
Apr 17, 2026
updates
Beth number - justify existence of Beth omega
I read through the answers to previous questions regarding Beth numbers and was unable to find the answer to my question, so I hope this isn't a dupl...
Apr 17, 2026
![How do I sketch the region of integration and evaluate a double integral? [closed]](https://news.conceivablytech.com/uploads/how-do-i-sketch-the-region-of-integration-and-evaluate-a-double-integral-closed_720.jpg)
updates
How do I sketch the region of integration and evaluate a double integral? [closed]
How would I do this double integration and others like it? I don't necessarily want an exact answer to this one, but if you could go into detail on t...
Apr 17, 2026
updates
Expressiveness of First Order Logic with unary predicates and finite number of variables?
So I just realised that in all the work I have seen (which is literally a drop of the ocean) on First Order Logic, I never really saw anything on expressi...
Apr 17, 2026
updates
Finding a differential
I am trying to compute $\Delta y$ and dy for a given value of x and dx = $\Delta x$ I am given $y=2x-x^2$ x=2 and $\Delta x = -.04$ Not really sure what t...
Apr 17, 2026
