1.12x*6x=60
2.c*23+12/c=10
3.12y*12y=102
4.ak*12=204
4條maths
2008-11-25 1:03 am
回答 (7)
2008-11-25 1:29 am
✔ 最佳答案
1. 12x X 6x=6072x(2次方)=60
x(2次方)=60/72
x=開方0.8333...
開方我唔想拎計數機出黎禁
2. 你條式係咪有少許問題
正常黎講你程度未去到呢度
3. 12y X 12y =102
144y(2次方)=102
y(2次方)=102/144
y=開方0.708333...
4. ak X 12=204
ak=204/12
ak=17
我完全唔知樓上既3位人兄係度做乜
呃分都唔好呃得咁離譜
只要有腦既人一睇就知你地亂up
頭2個就玩copy
尾2個又玩copy
仲夠膽話係自己諗
自己諗就唔會一齊錯埋晒d冇可能錯既野啦
參考: 我自己(就憑我ce數學拎d)至起碼比樓上4條冇用既物體好
2008-11-25 2:06 am
1.
12x*6x(2次)=60
(12*6)x(2次)=60
x(2次)= 60/72
x(2次)=5/6
x=√5/6
(系根號6分之5,唔知做乜顯示出黎變咗個勾勾lor..)
x=0.912870929
計算機系得咁多位,,抄曬出黎lar..
2.
c*23 12/c =10
23c 12/c=10
23c*c (12/c)*c=10*c
23c(2次) 12=10c
10c-23c(2次)=12
c(10-23c)=12
我系計到咁多咋,應該就無錯啦,不過唔知點計下去好..
3.
12y*12y=102
(12*12)(y2次)=102
y2次= 102/144
y=0.841625411
又系抄計數機既..
4.
ak*12=204
12ak=204
ak= 204/12
ak= 17
12x*6x(2次)=60
(12*6)x(2次)=60
x(2次)= 60/72
x(2次)=5/6
x=√5/6
(系根號6分之5,唔知做乜顯示出黎變咗個勾勾lor..)
x=0.912870929
計算機系得咁多位,,抄曬出黎lar..
2.
c*23 12/c =10
23c 12/c=10
23c*c (12/c)*c=10*c
23c(2次) 12=10c
10c-23c(2次)=12
c(10-23c)=12
我系計到咁多咋,應該就無錯啦,不過唔知點計下去好..
3.
12y*12y=102
(12*12)(y2次)=102
y2次= 102/144
y=0.841625411
又系抄計數機既..
4.
ak*12=204
12ak=204
ak= 204/12
ak= 17
參考: 自己做嘎..,我覺得我寫得好廢囉,不過應該就無錯..
2008-11-25 1:58 am
1.12x*6x=60
=> 72x^2 = 60
=> x^2 = 60/72
=> x^2 = 5/6
=> x = + 0.9129
2.c*23+12/c=10
=> 23c^2 + 12 = 10c
=> 23c^2 -10c +12 = 0
=> 用公式 (-b + (b^2-4*a*c)^.5)/2a 發現b^2-4*a*c is a -ve number so 冇 root. 呢條題目答案係 "No real solution".
3.12y*12y=102
=> 144y^2 = 102
=> y^2 = 102/144
=> y = + 0.8416
4.ak*12=204
=> ak = 204/12
=> k = 17/a
=> 72x^2 = 60
=> x^2 = 60/72
=> x^2 = 5/6
=> x = + 0.9129
2.c*23+12/c=10
=> 23c^2 + 12 = 10c
=> 23c^2 -10c +12 = 0
=> 用公式 (-b + (b^2-4*a*c)^.5)/2a 發現b^2-4*a*c is a -ve number so 冇 root. 呢條題目答案係 "No real solution".
3.12y*12y=102
=> 144y^2 = 102
=> y^2 = 102/144
=> y = + 0.8416
4.ak*12=204
=> ak = 204/12
=> k = 17/a
參考: CLOUDWAH
2008-11-25 1:28 am
1.12X*6X=60
72X=60
x=0.83
2..c*23+12/c=10
23*C=10-12/C
=(10C-12)/C
10C=35
C=3.5
3.24y=102
Y=102/24
=4.25
4.12ak=204 204/1217
72X=60
x=0.83
2..c*23+12/c=10
23*C=10-12/C
=(10C-12)/C
10C=35
C=3.5
3.24y=102
Y=102/24
=4.25
4.12ak=204 204/1217
參考: 我
2008-11-25 1:18 am
1.12X*6X=60
72X=60
x=0.83
2..c*23+12/c=10
23*C=10-12/C
=(10C-12)/C
10C=35
C=3.5
3.24y=102
Y=102/24
=4.25
4.12ak=204 204/1217
72X=60
x=0.83
2..c*23+12/c=10
23*C=10-12/C
=(10C-12)/C
10C=35
C=3.5
3.24y=102
Y=102/24
=4.25
4.12ak=204 204/1217
2008-11-25 1:11 am
1.12X*6X=72X 72X=60 x=0.83
2.c+12/C=10 10*12=120/23 =5.22
3.24y=102 102/24=5
4.12ak=204 204/1217
2.c+12/C=10 10*12=120/23 =5.22
3.24y=102 102/24=5
4.12ak=204 204/1217
參考: 正確答案
2008-11-25 1:09 am
1.12X*6X=72X 72X=60 x=0.83
2.c+12/C=10 10*12=120/23 =5.22
3.24y=102 102/24=5
4.12ak=204 204/1217
2.c+12/C=10 10*12=120/23 =5.22
3.24y=102 102/24=5
4.12ak=204 204/1217
參考: me
收錄日期: 2021-04-13 16:15:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081124000051KK01013