一道GRE数学题,A certain identification is a list of five symbolsA certain identification is a list of five symbols:S1,S2,D1,D2,D3,Each of the first 2 symbols must be one of the 26 letters of the English alphabet,and each of the last 3 symbols mu

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/19 17:52:39
一道GRE数学题,AcertainidentificationisalistoffivesymbolsAcertainidentificationisalistoffivesymbols:S1,S2,

一道GRE数学题,A certain identification is a list of five symbolsA certain identification is a list of five symbols:S1,S2,D1,D2,D3,Each of the first 2 symbols must be one of the 26 letters of the English alphabet,and each of the last 3 symbols mu
一道GRE数学题,A certain identification is a list of five symbols
A certain identification is a list of five symbols:S1,S2,D1,D2,D3,Each of the first 2 symbols must be one of the 26 letters of the English alphabet,and each of the last 3 symbols must be one of the 10 digits.(Repeated letters and digits are allowed.).What is the total number of different identification codes?

一道GRE数学题,A certain identification is a list of five symbolsA certain identification is a list of five symbols:S1,S2,D1,D2,D3,Each of the first 2 symbols must be one of the 26 letters of the English alphabet,and each of the last 3 symbols mu
翻译为中文:一个特定的识别是五个符号组成:S1,S2,D1,D2,D3,前面2个符号必须是26个英文字母中的一个,和后面3个符号必须是10位数字(0--9).(重复的字母和数字都是允许的.).不同的识别码的总数是多少?
这就是一个排列组合题.前2个符号分别是26个字母任选一个,各有26种选择,后3个符号是在10个数字中各任选一个,分别有10种选择
应该为 26*26*10*10*10=676000

求解一道GRE的数学题 一道GRE数学题,A certain identification is a list of five symbolsA certain identification is a list of five symbols:S1,S2,D1,D2,D3,Each of the first 2 symbols must be one of the 26 letters of the English alphabet,and each of the last 3 symbols mu GRE PP2 第一套中的一道数学题 一道GRE数学题,绿皮书section62,p376, 一道新GRE数学题If a写错了,是 a GRE PP2模考的一道数学题不太清楚为什么答案是A 这是一道GRE数学题,没明白,In a certain sequence of numbers,each term after the first term is found by multiplying the preceding term by 2 and then subtracting 3 from the product.If the 4th term in the sequence is 19,which of the following nu 关于gre pp2一道数学题 为什么选b阿 一道gre双空题!although the politician was basically conservative in her views,she was not___; her positions on certain issues could even be called___.a.radicalb.moderatec.reactionaryd.progressivee.hideboundf.cautious 一道GRE逻辑题Arecent survey showed that many workers in a certain company are dissatisfiedwith their jobs.The survey also showed that most of the dissatisfied workersbelieve that they have little control over their job assignments.Therefore,toin 一道GRE填空题,求分析句子表意6、 Any population increase beyond a certain level necessitates greater ________vegetable foods; thus, the ability of asociety to choose meat over cereals always arises, in part, from ________ the number of pe a certain 一道关于新GRE market survey showed that 76 percent of the visitors at a certain resorA market survey showed that 76 percent of the visitors at a certain resort came from Pacific or southwestern states.Of these,were from California,and 87 percent 一道A卷数学题. 一道gre数学题n is an even integer and a multiple of 3 .The remainder when n is divided by 12 和 8 比较 One day a certain period,only one person I secretly 几道GRE数学题 新GRE数学题求助>