共50条信息
已知数列\(\{a_{n}\}\)满足\(a_{1}=1\),\(a_{n+1}=2a_{n}+1\).
\((1)\)求证:数列\(\{a_{n}+1\}\)是等比数列;
\((2)\)求数列\(\{a_{n}\}\)的通项公式.
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