If n is a positive integer and r is the remainder when (n-1)(n+1) is divided by 24, what is the value of r? (1) 2 is not a factor of n. (2) 3 is not a factor of n. 选项: 答案: C 提问列表 提问: 感觉2 , 3 不是N 的因子,5,7 等还是可以是N 的因子,若N=5, N^...
If n is a positive integer and r is the remainder when (n – 1)(n + 1) is divided by 24, what is the value of r ? (1)n is not divisible by 2. (2)n is not divisible by 3. 选项: A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient....
If n is a positive integer and r is the remainder when (n-1)*(n+1) is divided by 24, what is the value of r?1. 2 is not a factor of n.2. 3 is not a factor of n.请问这题思路是什么啊?怎么利用那两个条件,我完全无从下手(n+1)(n-1),中间是相乘,我多余打了个* 下载...
渐入佳境！愿逆风如解意，容易莫摧残。
条件一：n不能被2整除→n为奇数→(n-1)、(n+1)为连续偶数，乘积为8的倍数 此时(n-1)(n+1)...
If n is a positive integer,and if the units’digit of n2 is 6 and the units’digit of (n-1)2 is 9,the units’digit of (n+1)2 is ___. (英汉小词典 units’digit:个位数字) 相关知识点: 试题来源: 解析 试题分析:分别写出0到9平方的尾数对应情况,然后可得出n及n-1的尾数,进而可得出n...
For convenience, let N represent the product of all integers from 1 through n. Then, since N is divisible by 990, every prime factor of 990 must also be a factor of N. The prime factorization of 990 is 2×32×5×11, and therefore, 11 must be a factor of N. Then, the least pos...
英语翻译if n is a positive integer,then n(n+1)(n+2) isA even only when n is oddB evne onl
If n is a positive integer and n2 is divisible by 72, then the largest positive integer that must divide n is A.6B.12C.24D.36E.(E) 48 点击查看答案 你可能感兴趣的试题 单项选择题 In the preceding figure, if l1∥l2, what is the value of x 点击查看答案 单项选择题 If a = 1 an...
If n is a positive integer, then which of the following must be true about (n) and (n+1)? () A. n is odd and (n+1) is even. B. n is even and (n+1) is odd. C. The product of the two terms is odd. D. The sum of the two terms is even. E. The product of the...