updates
How can a "proper" function have a vertical slope?
Plotting the function $f(x)=x^{1/3}$ defined for any real number $x$ gives us: Since $f$ is a function, for any given $x$ value it maps to a single y valu...
Apr 19, 2026
Archive: Updates
![What software and/or language to use to take Math lecture notes? [closed]](https://news.conceivablytech.com/uploads/what-software-and-or-language-to-use-to-take-math-lecture-notes-closed_720.jpg)
updates
What software and/or language to use to take Math lecture notes? [closed]
I have a terrible hand-writing and I'm very good at typing, so I had an idea about taking my math lecture notes using a computer. I've tried usi...
Apr 19, 2026
![What is the length of [BC]?](https://news.conceivablytech.com/uploads/what-is-the-length-of-bc_720.jpg)
updates
What is the length of [BC]?
Let A , B and C be 3 points of a circle (c) P is the intersection of two tangents of the circle in points B and C Let (AB)//(CP) and AB=3 and BP=4 What is...
Apr 19, 2026
updates
How to prove the infinite number of sides in a circle?
I was in geometry class today when I came across the following formula for the external angle of a regular polygon with n sides: $$Ea = \frac{360ยบ}{n}$$ S...
Apr 19, 2026
updates
Graphing parametric equation software? Desmos/Mathematica/ other math software?
I want to view what the graph of, for example, $x=\sin t,\quad y = \sin(10t)$ looks like, but not as a static graph $\ y=f(x),\ $ but rather one where we ...
Apr 19, 2026
updates
Show that the solution of the equation $x^5-2x^3-3=0$ are all less than 2 (using proof by contradiction).
The question is "Show that the solution of the equation $x^5-2x^3-3=0$ are all less than 2." I have attempted to answer this question using proo...
Apr 19, 2026
updates
Derivative of a Trigonometric Function Help
Trying to derive a trigonometric function, Wolfram Alpha and my textbook provide two different answers. Here is the function: $$y = {\cot x\over (1+\csc x...
Apr 19, 2026
updates
Partial fraction integration
So I want to find all antiderivaties of $\frac{x}{x^3-1}$ Since the denominator is of a lesser degree than the numerator, partial fraction is to be used i...
Apr 19, 2026
updates
Question on the definition of the category of elements of a presheaf.
I am new in Topos theory. I have actually just started learning. I am reading MacLane-Moerdijk's book, as it was suggested to me as the best introduc...
Apr 19, 2026
updates
Solving for the amount of level payments proportional to interest due from sample SOA exam
this is a problem from practice exam FM that I am studying for: A 20-year loan of 1000 is repaid with payments at the end of each year. Each of the first ...
Apr 19, 2026
