- 问题详情:在数列{an}中,若an2﹣an﹣12=p(n≥2,n∈N*,p为常数),则称{an}为“等方差数列”,下列是对“等方差数列”的判断;①若{an}是等方差数列,则{an2}是等差数列;②{(﹣1)n}是等方差数列;③若{an}是等方差数列,则{akn}(k∈N*,k为常数)也是等方差数列;④若{an}既是等方差数列,又是等差数列,则该数列...
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- Whenheboughtthembackagainthismonththesharepricehadslumpedtoonly12p.Today'sfinaldividendof2.2pmeansPremierwillhavepaidatotaldividendof6.5pasharein2007,downfrom12pashareayearago....
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- 问题详情:设某工厂生产总值月平均增长率为p,则年平均增长率为( )A.p B.12p C.(1+p)12 D.(1+p)12-1【回答】D知识点:数列题型:选择题...
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