设函数f(x)=22cos(2x+π4)+sin2x,x∈R(1)求f(x)的最 发布时间:2017-05-11 22:27 │ 来源:www.tikuol.com 题型:解答题 问题: 设函数f(x)=22cos(2x+π4)+sin2x,x∈R(1)求f(x)的最小正周期(2)若函数g(x)对任意x∈R有g(x+π2)=g(x)且x∈[0,π2]时g(x)=f(x),求g(x)在区间[-π2,0]上的解析式.
题型:解答题 It was the third time that the boy _________ late. So his teacher got very angry.A.have beenB.was C.had beenD.was being 查看答案