数列{an}满足an=3an-1+3^n-1 (n属于正整数,大于等于2)已知a3=95(1)求a1,a3;(2){bn}=1|3^n(an-1|2),证明{bn}为等差数列;(3)求{an}通项应为(1)求a1和a2
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![数列{an}满足an=3an-1+3^n-1 (n属于正整数,大于等于2)已知a3=95(1)求a1,a3;(2){bn}=1|3^n(an-1|2),证明{bn}为等差数列;(3)求{an}通项应为(1)求a1和a2](/uploads/image/z/823254-6-4.jpg?t=%E6%95%B0%E5%88%97%7Ban%7D%E6%BB%A1%E8%B6%B3an%3D3an-1%2B3%5En-1+%EF%BC%88n%E5%B1%9E%E4%BA%8E%E6%AD%A3%E6%95%B4%E6%95%B0%2C%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E2%EF%BC%89%E5%B7%B2%E7%9F%A5a3%3D95%EF%BC%881%EF%BC%89%E6%B1%82a1%2Ca3%EF%BC%9B%EF%BC%882%EF%BC%89%EF%BD%9Bbn%EF%BD%9D%3D1%7C3%5En%EF%BC%88an-1%7C2%EF%BC%89%2C%E8%AF%81%E6%98%8E%EF%BD%9Bbn%EF%BD%9D%E4%B8%BA%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%3B%283%29%E6%B1%82%7Ban%7D%E9%80%9A%E9%A1%B9%E5%BA%94%E4%B8%BA%EF%BC%881%EF%BC%89%E6%B1%82a1%E5%92%8Ca2)
数列{an}满足an=3an-1+3^n-1 (n属于正整数,大于等于2)已知a3=95(1)求a1,a3;(2){bn}=1|3^n(an-1|2),证明{bn}为等差数列;(3)求{an}通项应为(1)求a1和a2
数列{an}满足an=3an-1+3^n-1 (n属于正整数,大于等于2)已知a3=95(1)求a1,a3;(2){bn}=1|3^n(an-1|2),证明{bn}为等差数列;(3)求{an}通项
应为(1)求a1和a2
数列{an}满足an=3an-1+3^n-1 (n属于正整数,大于等于2)已知a3=95(1)求a1,a3;(2){bn}=1|3^n(an-1|2),证明{bn}为等差数列;(3)求{an}通项应为(1)求a1和a2
同学 题目是不是错了 a3 已经知道了...
2
a1=77/9;a2=86/3
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