a) Change the subject of the formula to a.
更新1:
Ans.:a=c/(c^2-1)+2b
Maths Question
2007-11-04 7:14 am
1. It is given that 1/(a-2b)+1/c=c .
a) Change the subject of the formula to a.
a) Change the subject of the formula to a.
回答 (2)
2007-11-04 7:24 am
✔ 最佳答案
1/(a-2b) + 1/c = c1/(a-2b) = c - 1/c
1/(a-2b) = (c^2 - 1)/c
a-2b = c/(c^2 - 1)
a = c/(c^2 - 1) + 2b
2007-11-04 7:28 am
1/(a-2b)=c-1/c=(c^2-1)/c
a-2b=1/[(c^2-1)/c]=c/(c^2-1)
a=c/(c^2-1)+2b
a-2b=1/[(c^2-1)/c]=c/(c^2-1)
a=c/(c^2-1)+2b
參考: me
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