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> 已知函数 f(x)=(cosx+sinx)2+ 3 cos2x-1．（1）求f（x）的最小正周期和图象的对称轴方程；（2）求f（x）在区间 [0， π 2 ]上的最大值和最小值．

问题：

发布时间：2024-09-07

已知函数 f(x)=(cosx+sinx)2+

3

cos2x-1．
（1）求f（x）的最小正周期和图象的对称轴方程；
（2）求f（x）在区间 [0，

π

2

]上的最大值和最小值．

参考答案：

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已知函数 f(x)=(cosx+sinx)2+ 3 cos2x-1． （1）求f（x）的最小正周期和图象的对称轴方程； （2）求f（x）在区间 [0， π 2 ]上的最大值和最小值．

可能感兴趣的题目：

已知函数 f(x)=(cosx+sinx)2+

3

cos2x-1．
（1）求f（x）的最小正周期和图象的对称轴方程；
（2）求f（x）在区间 [0，

π

2

]上的最大值和最小值．