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锐角三角函数是初中数学中的一个重要内容,也是历年中考的热点之一.近几年各省市的中考试题中出现了一种崭新的形式——锐角三角函数与圆联袂出的一类几何题.这类试题不仅应用到圆的相关知识解决问题,而且还丰富了解决圆问题的方法与技巧,还对锐角三角函数、勾股定理等相关知识作了很好的考查,它已受到命题者的青睐,成为近几年中考试题中的一
An acute trigonometric function is an important part of junior high school mathematics and one of the hottest points in the past years.A new form of examination in the middle and upper entrance examinations of various provinces and cities in recent years - a kind of geometry problem Such questions not only apply to the circular related knowledge to solve the problem, but also enrich the methods and techniques of solving the circular problem, but also the acute trigonometrical trigonometry and other related knowledge made a good test, it has been the prophet Of all ages, become one of the exam questions in recent years