a1=x+1(x≠0且x≠-1),a2=1/(1-a1),a3=1/(1-a2),……,an=1/(1-an-1),则a2011等于( ) A.x B.x+1 C.-1/x D.x/x+1为什么答案上是 B 我觉得是D a-a(n-1) n-1是a的角标!
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![a1=x+1(x≠0且x≠-1),a2=1/(1-a1),a3=1/(1-a2),……,an=1/(1-an-1),则a2011等于( ) A.x B.x+1 C.-1/x D.x/x+1为什么答案上是 B 我觉得是D a-a(n-1) n-1是a的角标!](/uploads/image/z/4322827-19-7.jpg?t=a1%3Dx%2B1%EF%BC%88x%E2%89%A00%E4%B8%94x%E2%89%A0-1%EF%BC%89%2Ca2%3D1%2F%EF%BC%881-a1%EF%BC%89%2Ca3%3D1%2F%EF%BC%881-a2%EF%BC%89%2C%E2%80%A6%E2%80%A6%2Can%3D1%2F%EF%BC%881-an-1%EF%BC%89%2C%E5%88%99a2011%E7%AD%89%E4%BA%8E%EF%BC%88+%EF%BC%89+A.x+B.x%2B1+C.-1%2Fx+D.x%2Fx%2B1%E4%B8%BA%E4%BB%80%E4%B9%88%E7%AD%94%E6%A1%88%E4%B8%8A%E6%98%AF+B+%E6%88%91%E8%A7%89%E5%BE%97%E6%98%AFD+a-a%EF%BC%88n-1%EF%BC%89+n-1%E6%98%AFa%E7%9A%84%E8%A7%92%E6%A0%87%EF%BC%81)
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