设等比数列an的公比q =二分之一,前n项和为sn则a4分之s4=
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=1/2,前n项和为Sn,则S4/a4=
设等比数列an的公比q=1/2,前n项和为sn,则s4/a4=
设等比数列{an}的公比q=1/2,前n项和为Sn,则S4/a4=?
设等比数列an的公比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,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\a2=
设等比数列an的公比q=2,前n项和为sn,则s4除以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q=2,前n项和为Sn,则S4/a2等于( )