I've asked this question a couple of times but I haven't been specific enough, I think, to get to the true answer. After spending a couple of we...

Prove that $\nabla_A Tr(AA^T) = 2A$, where A is any square matrix I did simple derivative with product rule,but i don't know where i messed up, I sta...

A rectangle with one side on the $x$-axis has its upper vertices on the graph of $y = \cos x$. What is the minimum area outside the rectangle but under th...

I'm not quite getting the concept of a reflexive set in my discrete math class. I think I understand that a reflexive set is the product of set $\mat...

So I have this quartic equation here: $x^4-3x+1=0$ I'm supposed to prove this equation has exactly 2 roots. I defined $f(x)=x^4-3x+1=0$ Then I used t...

I would like to know if there is a method, and what is called the area of mathematics that studies this kind of things, for projecting surfaces on other s...

I understand that the asymptote to a curve is a straight line such that the distance between the curve and the line tends to zero as they tend to infinity...

First of all, please do excuse the lack of correct terminology, I've haven't learnt Differential Equations at school (yet) so this question come...

How many Gauss points are required if the Gauss quadrature rule should provide the exact value of the integral $I=\int_{-1}^1f(x)dx$ for $f(x)=(x^2-1)^2$?...

Is $(\sin 48)/2$ the same as $\sin 24$? Does $(\sin 48)/2$ simplify to $\sin 24$? I appreciate the fact the sine graph is curved, so would this mean that ...