I was given a question that asks "Let A={1,2} ,B={x,3,y},C={2,y}. Find A x B x C and C x B x C " I have an example that I could go by but i'm not sur...

I tried solving this equation for a long time but did not succeed. Any help is appreciated. $$\ln x=-x$$ I am not sure the tag is correct, I am not famili...

Background: Many (if not all) of the transformation matrices used in $3D$ computer graphics are $4\times 4$, including the three values for $x$, $y$ and $...

Find the self-adjoint form of the ODE : $ x^2y''+xy'+\mu y=0 \ $ in the form $ \frac{d}{dx} [p_0 (x) y']+ \mu [q_0(x)]y=0 \ $ Answer: ...

$\large S=\sqrt[3] {5+2 \sqrt {13}}+\sqrt[3]{5-2 \sqrt {13}}$ Multiplying by conjugate: $\large S=\dfrac {-3}{\sqrt[3] {5+2 \sqrt {13}}-\sqrt[3]{5-2 \sqrt...

I want to compute this: $$\begin{bmatrix} U\\ Y \end{bmatrix} = \begin{bmatrix} L_{11} &0 \\ L_{21} & L_{22} \end{bmatrix}\begin{bmatrix} Q_1\\ Q_...

What is the relationship between groups and permutations? The way I understand it, a permutation is a set of numbers that you can do things with. A group ...

I realized that generally a 5th degree equation cannot be solved by radicals, but what if we have a 5th degree equation with repeated roots, how about its...

I'm looking for a text that covers roughly what's sometimes called "Calculus III" or multivariable calculus.* But this text must satisfy certain...

The chance to throw a 6 with one die is 1/6 And 6 times 1/6 = 1 So, if I throw with 6 dice, the chance to throw at least 1 six should be 1. But when I thr...