一道高二数学归纳法的题目,超急,!在数列{an}中,a1=1,a=2(a-1)+(n+2)/n(n+1)(n≥2,n∈N*)(1)求a2、a3、a4;(2)猜想数列{an}的通项公式an=f(n),并用数学归纳法证明你的猜想.我已经做出来a2=
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![一道高二数学归纳法的题目,超急,!在数列{an}中,a1=1,a=2(a-1)+(n+2)/n(n+1)(n≥2,n∈N*)(1)求a2、a3、a4;(2)猜想数列{an}的通项公式an=f(n),并用数学归纳法证明你的猜想.我已经做出来a2=](/uploads/image/z/7811027-35-7.jpg?t=%E4%B8%80%E9%81%93%E9%AB%98%E4%BA%8C%E6%95%B0%E5%AD%A6%E5%BD%92%E7%BA%B3%E6%B3%95%E7%9A%84%E9%A2%98%E7%9B%AE%2C%E8%B6%85%E6%80%A5%2C%21%E5%9C%A8%E6%95%B0%E5%88%97%EF%BD%9Ban%EF%BD%9D%E4%B8%AD%2Ca1%3D1%2Ca%3D2%EF%BC%88a%EF%BC%8D1%29%2B%28n%2B2%29%2Fn%28n%2B1%29%28n%E2%89%A52%2Cn%E2%88%88N%2A%29%EF%BC%881%EF%BC%89%E6%B1%82a2%E3%80%81a3%E3%80%81a4%EF%BC%9B%EF%BC%882%EF%BC%89%E7%8C%9C%E6%83%B3%E6%95%B0%E5%88%97%EF%BD%9Ban%EF%BD%9D%E7%9A%84%E9%80%9A%E9%A1%B9%E5%85%AC%E5%BC%8Fan%3Df%EF%BC%88n%EF%BC%89%2C%E5%B9%B6%E7%94%A8%E6%95%B0%E5%AD%A6%E5%BD%92%E7%BA%B3%E6%B3%95%E8%AF%81%E6%98%8E%E4%BD%A0%E7%9A%84%E7%8C%9C%E6%83%B3.%E6%88%91%E5%B7%B2%E7%BB%8F%E5%81%9A%E5%87%BA%E6%9D%A5a2%3D)
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