Convert a Cartesian vector to a cylindrical vector
This has been bugging me for the last day or so and I'm pretty sure I'm missing something... I have a vector with the following magnitudes in ca...
Category: Updates
Proof that the Period of $\sin(x)$ is $2\pi$.
As I was walking through campus today, I had an interesting question pop into my head: How can we prove that the period of $\tan(x)$ is $\pi$ rather than ...
Meaning of period symbol in this context?
Can anyone tell me what does the period symbol represent in this context? $5^5.2^2$
Mathematical Fallacy - The $17$ camels Problem.
So the Problem goes like this :- An old man had $17$ camels . He had $3$ sons and the man had decided to give each son a property with his camels. Unfortu...
Finding the value of the right-endpoint Riemann sum.
Calculate the area between $𝑓(𝑥)=𝑥^2$ and the x axis over the interval [3,12] using a limit of right-endpoint Riemann sums: Find the value of the right-en...
Prove the triangle is equilateral given that a quadrilateral related to its circumcircle is a kite
Let $\triangle ABC$ be a triangle. Let $Γ$ be its circumcircle, and let $I$ be it’s incenter. Let the internal angle bisectors of $∠A,∠B,∠C$ meet $Γ$ in $...
Do entries in augmented columns count as pivot?
I am in a basic linear algebra course, and we are learning to solve linear equations with augmented matrices. We learned that when an augmented matrix is ...
Difficulty turning a quadratic equation to "vertex"-form
I'm having difficulty reducing a quadratic equation to its "vertex-form" by following my textbook and nearly every tutorial I can find online. The st...
Serre fibrations vs. Hurewicz fibrations
What is an example of a Serre fibration that is not a Hurewicz fibration?
"Simple way" of finding number of integer solutions to $y^3=129-x^2$?
A problem appeared in an ICAS math competition paper G (for approximately 15 years olds) in 2010. The problem was: 37.A student uses trial and error to fi...
