when a=10^-97.24
(sin 10^-97.24 )/10^-97.24 =0.017453
when a=10^-97.25
(sin 10^-97.25 )/10^-97.25 =0
點解?
關於sin a除a,拎a做一個好細既數.
2011-04-12 8:05 am
回答 (2)
2011-04-12 10:50 am
✔ 最佳答案
(sin 10^-97.25)/10^-97.25 doesn't equal to 0. It would just be a extremely tiny vaule which your calculator can't display. I assume you have used a calculator to evaluate those questions, right?hope this can help =]
參考: me and the calculator
2011-04-13 7:41 am
實際上，當a趨近於0時，(sin a)/a趨近於1
計數機涉及極大或極小的計算時，結果不一定可靠。
計數機涉及極大或極小的計算時，結果不一定可靠。
收錄日期: 2021-04-18 17:59:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110412000051KK00004