试题与答案

若等差数列{an}的前5项和S5=25,且a2=3,则a3=( ) A.12 B

题型:选择题

题目:

若等差数列{an}的前5项和S5=25,且a2=3,则a3=(  )

A.12

B.5

C.14

D.15

答案:

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