一道SAT2数学题If all the terms of a geometric series are possible
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/08/31 01:23:43
一道SAT2数学题
If all the terms of a geometric series are possible,the first term of the series is 2,and the third term id 8,how many digits are there in the 40th term?
A 10
B 11
C 12
D 14
E 15
呃 答案我写错了 不好意思啊
A 10 B 11 C 12 D 13 E 14
正确答案是D13 可是,我算的是12啊
If all the terms of a geometric series are possible,the first term of the series is 2,and the third term id 8,how many digits are there in the 40th term?
A 10
B 11
C 12
D 14
E 15
呃 答案我写错了 不好意思啊
A 10 B 11 C 12 D 13 E 14
正确答案是D13 可是,我算的是12啊
这个是以2为首项,2为公比的等比数列,第40项就是2的40次方,就是1024的4次方,1024的平方显然比1000000大,比2000000小,也就是1开头的7位数,一个1开头的7位数的平方显然比1000000000000大,比4000000000000小,就是13位了,所以答案就是13,咋你的答案没一个对的.
一道SAT2数学题If all the terms of a geometric series are possible
一道数学题.find the sum of the n consecutive geometric terms whic
一道sat2数学题,the only prime factors of a number 'n' are 2,5,7,a
数列(英文题目)14.If the first,second and fifth terms of an A.P.are
sat数学题 The 3rd term of a geometric sequence is -3
有一道sat的试题麻烦解答一下 The 3rd term of a geometric seq
Are all fingerprints different?What are the possible use of
sat2 if 10 coins are to be flipped and the first 5 all come
SAT2数学题一道,if a square prism is inscribed in a right circular
一道SAT2数学题答好了我加分 if f(x)=x³-4x²-3x+2 which of the f
Sample of the product,where possible,if not a justification
一道英文数学题.if three different circles are drawn on a piece of p