设f0(x) = sinx,f1(x)=f0′(x),f2(x)=f1′(x),…,fn+1(x) = fn′(x),n∈N,则
f2005(x)=
A.sinx | B.-sinx | C.cosx | D.-cosx |
推荐套卷
设f0(x) = sinx,f1(x)=f0′(x),f2(x)=f1′(x),…,fn+1(x) = fn′(x),n∈N,则
f2005(x)=
A.sinx | B.-sinx | C.cosx | D.-cosx |