fxsinxx的精選

問題詳情：設函數f(x)=sin(x+)(x∈R),則f(x)()(A)在區間[,]上是增函數(B)在區間[-π,-]上是減函數(C)在區間[,]上是增函數(D)在區間[,]上是減函數【回答】A解析:由函數圖象的變換可知,f(x)=sin(x+)的圖象是將f(x)=sin(x...