问题
选择题
I wanted ______ basketball, but I ______ run fast.[ ]
A. play, could not
B. to play, can't
C. play the, can't
D. to play, could not
答案
答案:D
I wanted ______ basketball, but I ______ run fast.[ ]
A. play, could not
B. to play, can't
C. play the, can't
D. to play, could not
答案:D
已知函数y=f(x)(x∈D),方程f(x)=x的根x0称为函数f(x)的不动点;若a1∈D,an+1=f(an)(n∈N*),则称{an} 为由函数f(x)导出的数列. 设函数g(x)=
(1)求函数g(x)的不动点x1,x2; (2)设a1=3,{an} 是由函数g(x)导出的数列,对(1)中的两个不动点x1,x2(不妨设x1<x2),数列求证{
(3)试探究由函数h(x)导出的数列{bn},(其中b1=p)为周期数列的充要条件. 注:已知数列{bn},若存在正整数T,对一切n∈N*都有bn+T=bn,则称数列{bn} 为周期数列,T是它的一个周期. |