求满足sinx>cosx的x的取值集合
问题描述:
求满足sinx>cosx的x的取值集合
答
sinx>cosx
sinx-cosx>0
sin(x-π/4)>0
求满足sinx>cosx的x的取值集合
sinx>cosx
sinx-cosx>0
sin(x-π/4)>0