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三角函数最值问题是历年高考重点考查的知识点之一,它不仅与三角函数自身的常见基础知识如三角函数概念、图象和性质、诱导公式、同角关系、两角和与差的三角函数公式等密切相关,而且与代数与几何中的有关知识也有密切的联系.这类考题综合性强,解法灵活,对能力要求较高.下面就常见的一些三角函数最值问题,分类选解如下.
The problem of the trigonometric function is one of the most important points in the college entrance examination over the years. It not only relates to the common basic knowledge of trigonometric functions such as the concept of trigonometric functions, images and properties, induced formulas, homoclinic relations, triangles of two angles and difference. Function formulas are closely related, and they are also closely related to the knowledge in algebra and geometry. These kinds of questions are highly integrated, flexible in solution, and require higher abilities. Here are some common trigonometric function problems. as follows.