已知等差数列{an}满足a1+a2+a3+……+a101=0,则有()
问题描述:
已知等差数列{an}满足a1+a2+a3+……+a101=0,则有()
A.a1+a101>0 B.a2+a100
答
C
a1+a2+a3+……+a101=103a52=0,
=> a52=0,
a3+a99=a2+a100=a1+a101=2a52=0,