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标题: prep 新题目年利题来探讨一下～ [打印本页]

作者: viewlam 时间: 2017-12-11 15:55
标题: prep 新题目年利题来探讨一下～
How much more interests will maria receive if she invests $1,000 for one year at x percent annual interest, compounded semiannually, than if she invests $1,000 for one year at x percent annual interest, compounded annually?

来自pack 5

OA:x2/40 (40分之x的平方）

答案全选可见～

请问一下半年利要怎么算呢？

作者: andizza 时间: 2017-12-11 16:01
1000*((1+x/200)^2 - (1+x/100)) = (x^2)/40000*1000=(x^2)/40

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