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在中学数学中,有些代数,三角问题、若用纯粹的代教、三角方法很难解决,如果我们运用解析几何知识,巧妙地借用图象。把某些代数、三角问题解析化,将会有助于观察问题和揭示问题的实质,有助于启迪思维、拓宽思路、加深对问题的认识·用解析法解决某些代数、三角问题,常可使抽象化为直、使纷繁变得清晰、而且又能沟通数学中代数、三角、几何的不同知识和方法。下面举例说明:
In middle school mathematics, some algebra, trigonometric problems, and the use of pure alternatives and triangulations are difficult to solve. If we use analytical geometry knowledge, we will borrow the images subtly. Resolving certain algebraic and triangular problems will help to observe the problems and reveal the essence of the problems. It will help to enlighten the mind, broaden the thinking, and deepen the understanding of the problem. To solve certain algebraic and triangular problems by using analytical methods, often It can make abstraction straight, make it clearer, and it can also communicate different knowledge and methods in algebra, triangles, and geometry in mathematics. The following example illustrates: