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锐角三角函数是研究初等数学的基础知识,在物理、化学等学科里都有广泛的应用,掌握锐角三角函数的概念及性质更是学好解直角三角形的关键,锐角三角函数也是中考的必考内容.那么,怎样才能学好它呢,这里告诉你一个方法,保你轻松学好!一、从图形入手,理解锐角三角函数的定义研究锐角三角函数的定义,是将锐角放在直角三角形中,用直角三角形的边之间的比值来定义的.即如图
Acute trigonometric trigonometry is the basic knowledge of elementary mathematics, has a wide range of applications in physics, chemistry and other disciplines, to grasp the concept and nature of acute trigonometric trigonometry is the key to learn to understand right-angled triangles, acute trigonometry is also the content of the test So, how to learn it well, here to tell you a way to ensure that you easily learn! First, starting from the graphic, understand the definition of acute trigonometric functions Research on the definition of acute trigonometric functions, the acute angle is placed in a right triangle, with a right angle The ratio between the edges of the triangle is defined as shown in the figure