BOOSTGRE题库
您还没有登录，登录以后才可以查看答疑和进行提问。

试题详情

The sequence of numbers $$C_{1},C_{2},C_{3},...C_{w}...$$ is defined by $$C_{1}=2,C_{4}=4$$and $$C_{n}=C_{n-1}+n$$ for each integer n greater than 2. What is the value of $$C_{6}$$ ?
答案：D

专业教师答疑

3
评分
3
浏览

Problem Solving

老师请问这题是不是有问题呀？还是是我理解错了

问个问题