设数列{an}的前n项和为Sn,且满足Sn=npan﹣np n(n∈N*,p为常数),a1≠a2。(1)求p的值;(2)证明:数列{an}是等差数列
设数列{an}的前n项和为Sn,且满足Sn=npan﹣np n(n∈N*,p为常数),a1≠a2。(1)求p的值;(2)证明:数列{an}是等差数列
发布时间:2025-01-04 11:08:09
设数列{an}的前n项和为Sn,且满足Sn=npan﹣np n(n∈N*,p为常数),a1≠a2。(1)求p的值;(2)证明:数列{an}是等差数列