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functions - Hard functional equation: $ f \big ( x y + f ( x ) \big ... Let $ \mathbb R _ { > 0 } $ be the set of positive real numbers. Find all functions $ f : \mathbb R _ { >; 0 } \to \mathbb R _ { > 0 } $ such that $$ f \big ( x y ...
very hard differential equations - Mathematics Stack Exchange 9 May 2017 · The way I was thinking to approach this problem is that I know there is a class of separable differential equations: $\frac{dx}{dt}= F(t)g(x)$ And I know how to solve these, but I have no idea if 1. or 2. can be expressed in such form.
Very Hard System of Equations - Mathematics Stack Exchange 18 Jan 2019 · System of equations (Problem $50$ from $101$ algebra by Titu) Hot Network Questions Must a non-elementary chain model have an elementary submodel with the induced chain being elementary
algebra precalculus - How can I solve this hard system of equations ... 16 Jun 2016 · Solve the system below \\begin{align} &\\sqrt {3x} \\left( 1+\\frac {1}{x+y} \\right) =2\\\\ &\\sqrt {7y} \\left( 1-\\frac{1}{x+y} \\right) =4\\sqrt{2} \\end ...
Are there any hard-to-use or unsolvable math equations that have … 28 Feb 2016 · But are there any mathematical equations that are extremely non-trivial and virtually unsolvable which have strong real-world applications? Edit : I realized that to obtain appropriate answers, I must define the word "ugly."
Super hard system of equations - Mathematics Stack Exchange 6 Jan 2019 · Super hard system of equations. Ask Question Asked 6 years, 4 ... Looking at this system of equations, I ...
Visually stunning math concepts which are easy to explain 7 Apr 2014 · Steven Wittens presents quite a few math concepts in his talk Making things with math. His slides can be found from his own website. For example, Bézier curves visually: He has also created MathBox.js which powers his amazing visualisations in the slides.
Solving a hard algebraic equation - Mathematics Stack Exchange 4 Jul 2016 · Solving a hard algebraic equation. Ask Question Asked 8 years, 10 months ago. Modified 2 years, 2 months ago.
Are there any textbooks full of hard, challenging, or fun math … 2 Feb 2020 · Math equations like challenging algebra (simplify or solve for x) equations, trigonometry or trig identity equations, complex number equations, and tons of tricky integration bee problems (elementary
Hard Differential Equation - Mathematics Stack Exchange 14 Jul 2020 · Hard Differential Equation. Ask Question Asked 4 years, 10 ... ordinary-differential-equations; differential;