已知点Pn(an,bn)(n∈N*)都在直线l:y=2x+2上,P1为直线l与x轴的交点已知点Pn(an,bn)(n∈N*)都在直线l:y=2x+2上,P1为直线l与x轴的交点,数列{an}成等差数列,公差为1.(Ⅰ)求数列{an},{bn}的通
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![已知点Pn(an,bn)(n∈N*)都在直线l:y=2x+2上,P1为直线l与x轴的交点已知点Pn(an,bn)(n∈N*)都在直线l:y=2x+2上,P1为直线l与x轴的交点,数列{an}成等差数列,公差为1.(Ⅰ)求数列{an},{bn}的通](/uploads/image/z/11701822-22-2.jpg?t=%E5%B7%B2%E7%9F%A5%E7%82%B9Pn%EF%BC%88an%2Cbn%EF%BC%89%EF%BC%88n%E2%88%88N%2A%EF%BC%89%E9%83%BD%E5%9C%A8%E7%9B%B4%E7%BA%BFl%EF%BC%9Ay%3D2x%2B2%E4%B8%8A%2CP1%E4%B8%BA%E7%9B%B4%E7%BA%BFl%E4%B8%8Ex%E8%BD%B4%E7%9A%84%E4%BA%A4%E7%82%B9%E5%B7%B2%E7%9F%A5%E7%82%B9Pn%EF%BC%88an%2Cbn%EF%BC%89%EF%BC%88n%E2%88%88N%2A%EF%BC%89%E9%83%BD%E5%9C%A8%E7%9B%B4%E7%BA%BFl%EF%BC%9Ay%3D2x%2B2%E4%B8%8A%2CP1%E4%B8%BA%E7%9B%B4%E7%BA%BFl%E4%B8%8Ex%E8%BD%B4%E7%9A%84%E4%BA%A4%E7%82%B9%2C%E6%95%B0%E5%88%97%7Ban%7D%E6%88%90%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%2C%E5%85%AC%E5%B7%AE%E4%B8%BA1%EF%BC%8E%EF%BC%88%E2%85%A0%EF%BC%89%E6%B1%82%E6%95%B0%E5%88%97%7Ban%7D%2C%7Bbn%7D%E7%9A%84%E9%80%9A)
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