数列{an}的首项为3，{bn}为等差数列且bn=an+1﹣an（n∈N*），若b3=﹣2，b10=12，则a8=_刷题宝

题干

数列{a_n}的首项为3，{b_n}为等差数列且b_n=a_n+1﹣a_n（n∈N^*），若b₃=﹣2，b₁₀=12，则a₈=（）

A：0

B：3

C：8

D：11

上一题下一题 0.0难度选择题更新时间:2016-11-08 04:10:14

答案(点此获取答案解析）

B

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