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在圆,椭圆,基本不等式这几章的学习中都出现过这样一类题.已知x,y满足一个等式,求关于x,y的某个式子的范围.在各章节的学习中,教师都会突出讲解一两种方法来巩固所学知识.把这些试题放在一起分析比较,易看出因形式的不同而采取的不同方法解题.但仔细琢磨会发现它们的共同点,通过构建方程组解题.让我们从不同的角度理解数学,发现数学有趣的地方,激发学习数学的兴趣.以
In the circle, ellipse, basic inequality of these chapters have seen such a class of questions.It is known that x, y satisfy an equation, find the range of an equation for x, y in the study of each chapter , The teacher will highlight one or two ways to consolidate the knowledge learned.Through the analysis of these questions together, easy to see the different ways to take different ways to solve the problem.However, careful consideration will find their common ground, through Building equations for solving problems Let’s understand mathematics from different perspectives and find interesting places in mathematics to stimulate interest in learning mathematics.