Let P(n)=32n+24n−1 Step I For n=1, P(1)=32×1+24×1−1=32+24−1=9+24−1=32, which is divisible by 32. Therefore , the result is true for n=1 Step II Assume that the result is true for n=k, then P(k)=32k+24k−1 is divsible by 32. ⇒P(k)=...
百度试题 结果1 题目Is 62 divisible by 3?A:yesB:no 相关知识点: 试题来源: 解析 B None 反馈 收藏
2^555+1=(2^5+1)*(2^550-2^545+2^540……-2^5+1)=33*(2^550-2^545+2^540……-2^5+1)得证!
结果1 题目If a whole number is divisible by 111, then it must be divisible by ( ).A.5B.7C.11D.37 相关知识点: 试题来源: 解析 D Of the following choices, only 37 is a factor of 111.如果一个整数能被111整除,那么它一定能被( ) 整除..5 .7 .11 .37在下列选项中,只有37是111的...
题目是这样的说n is divisible by both 5and 7 then n must also be divisible by 但是我觉得要是说是像字典里一样解释为除尽的话 那不是应该也能被70除尽么? 相关知识点: 试题来源: 解析 能被5和7除尽的必定能被35除尽,但不一定能被70除尽,要能被70除尽,需要同时能被5,7,2除尽 ...
解析 C (x^3)+(x^2)+x+1 =(x^2)(x+1)+1(x+1) =((x^2)+1)(x+1). 下面哪个多项式能被x+1整除( ). .(x^2)+1 .(x^3)-1 .(x^3)+(x^2)+x+1 .(x^3)-(x^2)+x-1 (x^3)+(x^2)+x+1 =(x^2)(x+1)+1(x+1) =((x^2)+1)(x+1). 故选....
a对你有点感觉但是在以前 A little feels but to you in before [translate] aIf request.form("CompanyName")="" Then 正在翻译,请等待... [translate] aThen n is divisible by 3 if and only if the sum of its 然后n由3是可分的,如果和,只有当总和的它 [translate] ...
结果1 题目If an integer n is divisible by both 12 and 15, it must also be divisible by which of the following? A. 25 B. 16 C. 30 D. 40 E. 70 相关知识点: 试题来源: 解析 C 12=22×3,15=3×5,而n能够被12和15整除,那么n就至少具有因子22,31,51,选项中哪个数能够由上面因子...
(1) 8k is divisible by 16. (2) 9k is divisible by 12. 选项: A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
解析 Solutions:Since, the number is divisible by 12. Hence, it also divisible by its factors i.e 1, 2, 3, 4, 6, 12Therefore 1, 2, 3, 4, 6 are the numbers other than 12 by which this number is also divisible反馈 收藏