设f0(x)=sinx,f1(x)=f0′(x),f2(x)=f1′(x),…,
题型:选择题
问题:
设f0(x)=sinx,f1(x)=f0′(x),f2(x)=f1′(x),…,fn+1(x)=fn′(x),n∈N,则f2006(x)=( )
A.sinx
B.-sinx
C.cosx
D.-cosx
设f0(x)=sinx,f1(x)=f0′(x),f2(x)=f1′(x),…,fn+1(x)=fn′(x),n∈N,则f2006(x)=( )
A.sinx
B.-sinx
C.cosx
D.-cosx