设等比数列{an}的公比q=2,前n项和为Sn,则S4/S2等于
设等比数列{an}的公比q=2,前n项和为Sn,则S4/S2等于
设等比数列{an}的公比q=2,前n项和为Sn,则S4/a2等于
设等比数列{an}的公比q=2,前n项和为Sn,则S4/a2等于( )
设等比数列{an}的公比q=2,前n项和为Sn,则S4/a2等于多少
已知等比数列{an}前n项和为sn,且s4/s2=15/2,则公比q等于
设等比数列{an}的公比q=2,前n项和为Sn,S4\a2
设等比数列An的公比q=2,前n项和为Sn,则S4/A2等于
设等比数列an的公比为q=1/2,前n项和为Sn,则S4/a4=?
设等比数列an的公比q=2,前n项和为Sn,则S4/a4=
设等比数列{an}的公比q=2,前n项和为Sn,则S4/a2=?
设等比数列an的公比q=2,前n项和为sn,则s4\a2=
设等比数列an的公比q=2,前n项和为sn,则s4除以a2=