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在数学竞赛中,三角函数知识往往以中低档题出现,下面结合2006年高中数学竞赛中有关三角函数的题目来谈谈竞赛中的三角函数问题.
In the math competition, knowledge of trigonometric functions often appears in middle and low-grade questions. The trigonometric function in the competition is discussed below in conjunction with the topic of trigonometric functions in the 2006 Senior High School Mathematics Contest.