等比数列{an}公比是q,其前n项积为Tn,并且满足a1>1,a99a100>1,a99-1/a100-1
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![等比数列{an}公比是q,其前n项积为Tn,并且满足a1>1,a99a100>1,a99-1/a100-1](/uploads/image/z/10236660-60-0.jpg?t=%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97%7Ban%7D%E5%85%AC%E6%AF%94%E6%98%AFq%2C%E5%85%B6%E5%89%8Dn%E9%A1%B9%E7%A7%AF%E4%B8%BATn%2C%E5%B9%B6%E4%B8%94%E6%BB%A1%E8%B6%B3a1%3E1%2Ca99a100%3E1%2Ca99-1%2Fa100-1)
等比数列{an}公比是q,其前n项积为Tn,并且满足a1>1,a99a100>1,a99-1/a100-1
等比数列{an}公比是q,其前n项积为Tn,并且满足a1>1,a99a100>1,a99-1/a100-1
等比数列{an}公比是q,其前n项积为Tn,并且满足a1>1,a99a100>1,a99-1/a100-1
,a99-1/a100-11,
1.所以a99>1,a100
根据(a99-1)/(a100-1)<0,得a99>1,a100<1, q=a100/a99<1
a99a101=(a100)^2<1
T99最大
T198=(a99a100)^99>1
T199=(a100)^199<1
所以1,2,4正确。
根据(a99-1)/(a100-1)<0,得a99>1,a100<1, q=a100/a99<1
a99a101=(a100)^2<1
T99最大
T198=(a99a100)^99>1
T199=(a100)^199<1
所以1,2,4正确。