1, involving different fields: military modeling involves military action, military strategy, etc. Mathematical modeling involves practical problems in real life, with a wide range and many disciplines.
2. Different methods: Military modeling needs to establish complex models, involving military actions, military strategies and so on. Mathematical modeling needs to express practical problems mathematically and establish mathematical models, which involve differential equations, linear algebra and so on.
3. Different purposes: the purpose of military modeling is to solve problems such as military action and military strategy; The purpose of mathematical modeling is to solve practical problems in real life.
Question 1:AE= 3cm, EF = 5cm£»; Let AE=x, then EF = 8-x, AE=4, ¡Ï A = 90, ¡à x=3, ¡àAE="3" cm, EF="5" cm.
Problem 2: solution: as shown in figure 1, ¡Ò¡Ïmfe = 90,