1. c=3(t-5) [t]
2. S=1/2(a-b)x [b]
3. S=1/2(a-b)x [x]
4. V=abc [a]
5. S=2(ab+ax) [a]
6. d=l/(l-m) [m]
有幾條數唔識做(變換主項)
2008-09-03 7:15 am
回答 (3)
2008-09-03 7:38 am
✔ 最佳答案
1.C=3(T-5) [T]
C/3=T-5
C/3 +5=T
2.
S=1/2(A-B)X [B]
2S=(A-B)X
2S/X=A-B
B=A-2S/X
3.
S=1/2(A-B)X [X]
2S/A-B=X
4.
V=ABC [A]
A=V/BC
5.
S=2(AB+AX) [A]
S/2=AB+AX
S/2=A(B+X) (因式分解)
A=S/2B+2X
6.
D=L/(L-M) [M]
D(L-M)=L
L-M=L/D
M=L-L/D
如有不明白可以SD-E貓比我問=]
步驟應該唔係飛得好多...
參考: 自己答
2008-09-03 8:29 am
2008-09-03 7:43 am
1. c=3(t-5)
c=3t-15
t=(c+15)/3
2. a- (2S)/x =b
b=a- (2S)/x
3. x = 2S / (a+b)
4 a = V / (bc)
5. S/2 = a (b+x)
a = S / (2b+2x)
6. m = l - ( l / d)
c=3t-15
t=(c+15)/3
2. a- (2S)/x =b
b=a- (2S)/x
3. x = 2S / (a+b)
4 a = V / (bc)
5. S/2 = a (b+x)
a = S / (2b+2x)
6. m = l - ( l / d)
參考: me
收錄日期: 2021-04-23 20:35:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080902000051KK02524