Solve for f: (1/p)+(1/q)=(1/f)?
回答 (4)
2010-01-13 2:01 pm
✔ 最佳答案
f=pq/(p+q)God bless you.
2010-01-13 7:09 pm
1/p + 1/q = 1/f
f = 1/(1/p + 1/q)
f = 1/[q/(pq) + p/(pq)]
f = 1/[(q + p)/(pq)]
f = 1[pq/(p + q)]
f = pq/(p + q)
f = 1/(1/p + 1/q)
f = 1/[q/(pq) + p/(pq)]
f = 1/[(q + p)/(pq)]
f = 1[pq/(p + q)]
f = pq/(p + q)
2010-01-13 7:01 pm
(q/pq) + (p/pq) = (1/f)
f (q + p) = pq
f = (pq/(q+p))
f (q + p) = pq
f = (pq/(q+p))
2010-01-13 6:51 pm
multiply by fpq
so the equation will be
fq+fp = pq
f(p+q)=pq
f = pq/(p+q)
so the equation will be
fq+fp = pq
f(p+q)=pq
f = pq/(p+q)
收錄日期: 2021-05-01 12:58:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100113024813AAVP5VH