论文部分内容阅读
1999年全国高考理科第20题、文科第21题分别为：（1）设复数，求函数的最大值以及对应的值．（2）设复数，求函数的最大值以及对应的值．这两题均来自如下的原型：（3）已知，求X－y的最大值．这是前几年比较流行的一个题目．取x＝，y＝argz，将tgx＝3tgy隐含于复数3cos＋isin
In 1999, the 20th and 21st subjects of science in the National College Entrance Exam were: (1) Set the complex number, find the maximum value of the function, and the corresponding value. (2) Set the complex number, find the maximum value of the function and the corresponding value. Both of these questions come from the following prototype: (3) Known, find the maximum value of X-y. This is a relatively popular topic in previous years. Take x=,y=argz, and tgx=3tgy is implicit in the plural 3cos+isin