恰到好处地利用角的互余关系常常能使我们的思路豁然开朗,近几年的高考由于淡化了三角变换的人为技巧,因此对互余角的变换的考查便摆上比较显著的位置,有鉴于此,笔者认为对于此类问题有关方法的探究就显得十分必要.从高考试题来看,互余关系有隐性与显性两种,而考查方式则主要集 The proper use of the reciprocal relationship of angles can often make our thinking suddenly clear. In recent years, the college entrance examination has played down the human skills of the triangular transformation, so the examination of the transformation of complementary angles has taken a more prominent position. Therefore, the author thinks that it is very necessary to explore the relevant methods of this kind of problem. From the perspective of the high test questions, there are two kinds of implicit and explicit relations, while the examination methods are mainly set.