阅读下列程序:Read S1For I from 1 to 5 step 2 SS+IEnd forPrint S End输出的结果是 ▲
函数y=的定义域是 .
化简:(n∈Z)=_________.
设f(x)=sinx+cosx,f′(x)是f(x)的导数,若f(x)=2f′(x),则=_________.
已知α是第三象限角,且cos(85°+α)=,则sin(α-95°)= .
= .