for every positive even integer n, the funtion h(n) is defined to be the product of all the even integers from 2 to n, inclusive. if P is the smallest prime factor of h(100)+1, the P is A. between 2 and 10 B. between 10 and 20 C. between 20 and 30 D. between 30 and 40 E. greater than 40 答案是E。 我一点思路也没有,完全不知道该怎么做。。。 第二道有个图。。。我自己用画图板画了一个,怎么贴上来啊……只能做文件上传么???怎么传图啊??? 反正这是个rectangle,求的是KN/MN能不能求 (1) 说长方形LKNM的周长是30 (2)说三个小的长方形的面积相等 我选了E。答案给的是B。。。我觉得怎么样也求不出来啊。。。 求NN帮忙,马上就要考了,55555555555
[此贴子已经被作者于2009-5-26 20:23:49编辑过] |