等差数列(an,)(bn)的前n项的和分别是An和Bn,且满足An/Bn=4n+2/5n-2且a5/b5=
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等差数列(an,)(bn)的前n项的和分别是An和Bn,且满足An/Bn=4n+2/5n-2且a5/b5=
![等差数列(an,)(bn)的前n项的和分别是An和Bn,且满足An/Bn=4n+2/5n-2且a5/b5=](/uploads/image/z/19635056-8-6.jpg?t=%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%EF%BC%88an%2C%29%EF%BC%88bn%EF%BC%89%E7%9A%84%E5%89%8Dn%E9%A1%B9%E7%9A%84%E5%92%8C%E5%88%86%E5%88%AB%E6%98%AFAn%E5%92%8CBn%2C%E4%B8%94%E6%BB%A1%E8%B6%B3An%2FBn%3D4n%2B2%2F5n-2%E4%B8%94a5%2Fb5%3D)
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an=na+k sn=n(n+1)/2+nk
bn=nb+j sn=n(n+1)/2+nj
带入公式对应项相等求出 a、k、b、j 4个参数,带入a5/b5
an=na+k sn=n(n+1)/2+nk
bn=nb+j sn=n(n+1)/2+nj
带入公式对应项相等求出 a、k、b、j 4个参数,带入a5/b5
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