设{an}是等差数列,Sn是其前n项和,且S5小于S6,S6=S7大于S8,则下列结论错误的是
1个回答
C
an=a1+(n-1)d
A6=S6-S5>0
A7=S7-S6=0
A8=S8-S7
相关问题
已知Sn是等差数列an的前n项和,且满足S6>S7>S5,现有下列结论,
设[an](n∈N*)是等差数列,Sn是其前n项和,且S5S8为什么
设Sn是等差数列an的前n项和,s4/s12=1/6 则s8/s16=?
设Sn是等差数列{an}的前n项和,若S3S6=13,则S6S12=( )
设Sn是等差数列{an}的前n项和,若S3S6=13,则S6S12=( )
设Sn是等差数列{an}的前n项和,若S3S6=13,则S6S12=( )
等差数列an中,前n项和为Sn,且S6S8,则:
设Sn是等差数列{an}的前N项和,诺S3/S6=1/3则S6/S12=多少
设Sn是等差数列An的前n项和,若S3/S6=1/3,则S6/S12等于
数列{an}是等差数列,其前n项和是Sn,且S4=-62,S6=-75