设{an},{bn},{cn}均为非负数列,且lim(n->无穷)an=0,lim(n->无穷)bn=1lim(n->无穷)
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![设{an},{bn},{cn}均为非负数列,且lim(n->无穷)an=0,lim(n->无穷)bn=1lim(n->无穷)](/uploads/image/z/10460245-13-5.jpg?t=%E8%AE%BE%7Ban%7D%2C%7Bbn%7D%2C%7Bcn%7D%E5%9D%87%E4%B8%BA%E9%9D%9E%E8%B4%9F%E6%95%B0%E5%88%97%2C%E4%B8%94lim%28n-%3E%E6%97%A0%E7%A9%B7%29an%3D0%2Clim%28n-%3E%E6%97%A0%E7%A9%B7%29bn%3D1lim%28n-%3E%E6%97%A0%E7%A9%B7%29)
设{an},{bn},{cn}均为非负数列,且lim(n->无穷)an=0,lim(n->无穷)bn=1lim(n->无穷)
设{an},{bn},{cn}均为非负数列,且lim(n->无穷)an=0,lim(n->无穷)bn=1lim(n->无穷)
设{an},{bn},{cn}均为非负数列,且lim(n->无穷)an=0,lim(n->无穷)bn=1lim(n->无穷)
无穷*0属于未定类型 不能判定多少
无穷*有限且不为零的常数=无穷
所以 极限lim(n->无穷)bncn不存在
自己算