日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

若兩個函數(shù)的圖像經(jīng)過若干次平移后能夠重合，則稱這兩個函數(shù)為“同形”函數(shù)．給出下列三個函數(shù)：f₁(x)＝sinx＋cosx，，f₃(x)＝sinx，則

A．f₁(x)，f₂(x)，f₃(x)為“同形”函數(shù)

B．f₁(x)，f₂(x)為“同形”函數(shù)，且它們與f₃(x)不為“同形”函數(shù)

C．f₁(x)，f₃(x)為“同形”函數(shù)，且它們與f₂(x)不為“同形”函數(shù)

D．f₂(x)，f₃(x)為“同形”函數(shù)，且它們與f₁(x)不為“同形”函數(shù)

若兩個函數(shù)的圖像經(jīng)過若干次平移后能夠重合，則稱這兩個函數(shù)為“同形”函數(shù)．給出下列三個函數(shù)：，f₃(x)＝sinx，其中x∈R，則

A．f₁(x)，f₂(x)，f₃(x)為“同形”函數(shù)

B．f₁(x)，f₂(x)為“同形”函數(shù)，且它們與f₃(x)不為“同形”函數(shù)

C．f₁(x)，f₃(x)為“同形”函數(shù)，且它們與f₂(x)不為“同形”函數(shù)

D．f₂(x)，f₃(x)為“同形”函數(shù)，且它們與f₁(x)不為“同形”函數(shù)