4條maths

1. 12x X 6x=60
72x(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

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

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

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

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

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

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