已知数列 a n 的前n项和为S n ,且S n =1-a n (n∈N * ) (I )求数列 a n 的通项公式; (Ⅱ)已知数列 b n 的通项公式b n =2n-1,记c n =a n b n ,求数列 c n 的前n项和T n .
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】Australian Agricultural and Rural LifeFor many years, wool was the most important product to the Australian economy. The wool industry dates from 1797,when John Macarthur and Reverend Samuel Marsden i...
【简答题】Wool is static resistant () as the retention of moisture () within the fabric prs a buildup of static electricity (). Wool fibers are not dimensionally stable. It is easy to felting () and pillin...