why 1/(a+b) is equal to 1/a times (1- b/a) ,provided that b << a ???
also,how to change 1/(a+b) into 1/a times (1+b/a)* -1 and then to (1- b/a),
provided that b << a ???
simple maths
2011-01-26 1:46 am
回答 (1)
2011-01-26 3:30 am
收錄日期: 2021-04-23 23:24:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110125000051KK00831