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任意角三角函数的概念

> 函数y=cos 2（x- π 2 ）是（　　） A．最小正周期是π的偶函数 B．最小正周期是π的奇函数 C．最小正周期是2π的偶函数 D．最小正周期是2π的奇函数

问题：

发布时间：2024-09-08

函数y=cos ²（x-

π

2

）是（　　）

A．最小正周期是π的偶函数

B．最小正周期是π的奇函数

C．最小正周期是2π的偶函数

D．最小正周期是2π的奇函数

参考答案：

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函数y=cos 2（x- π 2 ）是（ ） A．最小正周期是π的偶函数 B．最小正周期是π的奇函数 C．最小正周期是2π的偶函数 D．最小正周期是2π的奇函数

可能感兴趣的题目：

函数y=cos ²（x-

π

2

）是（　　）

A．最小正周期是π的偶函数

B．最小正周期是π的奇函数

C．最小正周期是2π的偶函数

D．最小正周期是2π的奇函数