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高考试题中的三角函数题主要考查特殊角的三角函数值、三角函数的定义、同角三角函数的基本关系、二倍角公式、两角和与差的三角函数公式及三角函数的图象与性质等基础知识,考查考生的运算求解能力及运用数学知识解决实际问题的能力,考查函数与方程思想、化归与转化的思想.近几年,三角函数试题相对比较传统,难度均为中低档,位置靠前,重点突出.因此,在复习过程中既要注重三角知识的基础性,突出三角函数的图象、周期性、单调性、奇偶性、对称性等
The trigonometric functions in the entrance examination questions mainly examine the trigonometric function values of special angles, the definition of trigonometric functions, the basic relations with trigonometric functions, the formula of double angles, the trigonometric functions of two angles and differences, and the images and properties of trigonometric functions And other basic knowledge to examine the candidate’s ability to solve the operation and the use of mathematical knowledge to solve practical problems ability to examine the function and the idea of the equation and the idea of naturalization and conversion.In recent years the trigonometric function test is relatively traditional and difficult are low, Therefore, in the process of review, we should not only pay attention to the basic knowledge of trigonometry, but also highlight the image of trigonometric function, periodicity, monotonicity, parity, symmetry and so on