同学,这道题实际上是非常简单滴...因为你接着写下去,所有数字依次是3,5,-5,-3,3,5,-5,-3,3.发现3,5,-5,-3形成了一个循环...55除以4,等于13余3,所以就是-5啦
Each even-numbered term is 2 more than the previous term意思就是每个偶数项都比前面的数大2,比如,5是第二项,是偶数项,所以他比3大2,-5是奇数项,所以他是前面的数,也就是5的-1倍,明白?
3,5,-5,…
3,5,-5,…
The first term in the sequence of numbers shown above is 3.Each even-numbered term is 2 more than the previous term and each odd-numbered term,after the first,is -1 times the previous term.For example,the second term is 3+2,and the third term is (-1)*5.What is the 55th term of the sequence?
A.-5 B.-3 C.-1 D.3 E.5
这道题目我不是很看得懂.额.Each even-numbered term is 2 more than the previous term这句
这题来自SAT OG P398 Q13
The first term in the sequence of numbers shown above is 3.Each even-numbered term is 2 more than the previous term and each odd-numbered term,after the first,is -1 times the previous term.For example,the second term is 3+2,and the third term is (-1)*5.What is the 55th term of the sequence?
A.-5 B.-3 C.-1 D.3 E.5
这道题目我不是很看得懂.额.Each even-numbered term is 2 more than the previous term这句
这题来自SAT OG P398 Q13
英语人气：723 ℃时间：2020-05-03 20:28:21
优质解答
我来回答
类似推荐
猜你喜欢
- 1y=2x^3-x^2+5,则y的5阶导数是?
- 2-2013又六分之五-（2012又三分之二）-（-4026又四分之三）+（-1又二分之一）
- 3x的二次方减1 的绝对值 大于 2m加1
- 4一个礼品盒长40厘米,宽20厘米,高30厘米,给盒子打包,打结处的丝带长25厘米,共用去多少厘米丝带?
- 5宇航员在太空中生存需要哪些条件
- 6宇宙中有星光闪烁的恒星、移动的行星、圆缺变化轮的月亮,
- 7the police were told that some boys were seen_ on the street A to play B.playing C.to be playi...
- 8氯化铜为什么不能一步反应为氯化铁?
- 9the pen cost 5 yuan 对5 yuan进行提问_ _ _the pen cost him
- 10“只讲真实的话”作为一句单独的话是only telling the truth还是only tell the truth?