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教材对函数y=Asin(ωx+(?))+k的图象和性质有详尽的分析.本文说明不少正余弦函数式可以化为这个原型,使问题迎刃而解. 例1 求函数y=sinx+cosx的最大值和单调增区间.
The textbook has a detailed analysis of the image and properties of the function y=Asin(ωx+(?))+k. This article shows that many of the sine and cosine functions can be transformed into this prototype to solve the problem. Example 1 Find the function y=sinx+ The maximum value and monotonically increasing interval of cosx.