http://pic.fksite.com/080331/184623by_fksite_com.bmp
PS:求下列各題的未知數(全部都系求角度)
更新1:
咁短..詳細D吧
3題中3數學題唔識做
2008-04-01 2:54 am
呢到有條link 入面有3條數
http://pic.fksite.com/080331/184623by_fksite_com.bmp
PS:求下列各題的未知數(全部都系求角度)
http://pic.fksite.com/080331/184623by_fksite_com.bmp
PS:求下列各題的未知數(全部都系求角度)
回答 (1)
2008-04-01 3:42 am
✔ 最佳答案
1a tan abd=10/16abd=x
tan x=10/16
x=32
1b x=30
1c ac2=25^2 -15^2
ac=20
bc=20/2=10
tanx=10/15
x=34
收錄日期: 2021-04-29 20:23:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080331000051KK01894