正弦定理和余弦定理揭示了三角形中的边角关系,有关三角形中边角关系的问题,则可以使用上述两个定理来实现边角的转化,使解题方向明确.一、可以转化正弦余弦定理的问题 The sine and cosine theorems reveal the relationship between the corners of the triangle. For the problem of the relationship between the corners of the triangle, you can use these two theorems to achieve the transformation of the corners so that the problem-solving direction is clear. First, you can convert the sine-cosine theorem The problem