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三角函数在高考中占据着重要的地位,是各地高考每年必考的内容之一.考查的形式也多种多样,有些是三角函数的明确叙述,有些是角或三角函数的隐性存在.对于显性考查三角函数的题目,一般易于求解,而三角函数的隐性问题,则需化“隐”为“显”.本文简述三角函数“隐形”的几种形式
Trigonometric functions occupy an important position in the college entrance examination, is one of the parts of the college entrance examination each year will be required to examine one of the test forms are also varied, some of the trigonometric functions of a clear statement, some of the corner or trigonometric functions of the recessive existence. Explicitly examine the problem of trigonometric functions, generally easy to solve, and the implicit problem of trigonometric functions, you need to “hidden” as “manifest ” This article describes several forms of trigonometric function “stealth ”