maths
回答 (2)
2007-08-10 5:33 am
✔ 最佳答案
因為A 和 B 是兩連續數，而且B小於A所以設B=x,then A=x+1
條式:
x/2=(x+1)1/4+1
x/2=(x+1)/4+1
x=(x+1)/2+2
x-2=(x+1)/2
2(x-2)=x+1
2x-4=x+1
2x-x=1+4
x=5
因此B是5,A是5+1，即6
2007-08-10 5:33 am
let B be x, then A is x+1
x/2 = (x+1)/4 + 1
(x/2) x 4= [(x+1)/4 + 1] x 4
2x = (x+1)+4
x=5
so B is 5, and A is 6
x/2 = (x+1)/4 + 1
(x/2) x 4= [(x+1)/4 + 1] x 4
2x = (x+1)+4
x=5
so B is 5, and A is 6
參考: me
收錄日期: 2021-04-13 19:50:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070809000051KK05736