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,…The first term in the sequence of numbers shown abov
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