超難數學題 高手請進 超急 100點

2009-07-26 6:56 pm
93,660=8,000/(1+i)+8,000/(1+i)^2+8,000/(1+i)^3+8,000/(1+i)^4+100,000/(1+i)^4


答案要 i=10

回答 (6)

2009-07-27 9:08 pm
✔ 最佳答案
93,660=8,000/(1+i)+8,000/(1+i)^2+8,000/(1+i)^3+8,000/(1+i)^4+10

0,000/(1+i)^4

93,660=8,000x(1+i)^3/(1+i)^4+8,000x(1+i)^2/(1+i)^4+8,000x(1+i)/(1

+i)^4+8,000/(1+i)^4+100,000/(1+i)^4

93,660=8,000x(1+i)^3+8,000x(1+i)^2+8,000x(1+i)+8,000+100,000/

(1+i)^4

93,660=8,000x(1+i)+8,000x(1+i)+8,000+8,000+100,000

93,660=2[8,000x(1+i)]+8,000+8,000+100,000

46830=8,000x(1+i)+8,000+8,000+100,000

-69170=8,000x(1+i)

-8.64625=(1+i)

-8.64625=1-i

i=1+8.64625

i=9.64625

i=10(準確至整數)
參考: 信心保證
2009-07-27 7:13 pm
自己的事,自己做 ~~~~~
所以自己
參考: i
2009-07-27 1:06 am
93,660=8,000/(1+i)+8,000/(1+i)^2+8,000/(1+i)^3+8,000/(1+i)^4+100,000/(1+i)^4
93,660=8,000x(1+i)^3/(1+i)^4+8,000x(1+i)^2/(1+i)^4+8,000x(1+i)/(1+i)^4+8,000/(1+i)^4+100,000/(1+i)^4
93,660=8,000x(1+i)^3+8,000x(1+i)^2+8,000x(1+i)+8,000+100,000/(1+i)^4
93,660=8,000x(1+i)+8,000x(1+i)+8,000+8,000+100,000

2009-07-26 17:11:24 補充:
93,660=2[8,000x(1+i)]+8,000+8,000+100,000

46830=8,000x(1+i)+8,000+8,000+100,000

-69170=8,000x(1+i)

-8.64625=(1+i)

-8.64625=1-i

i=1+8.64625

i=9.64625

i=10(準確至整數)
參考: me, me
2009-07-26 9:02 pm
答案怎樣計算,我要詳細列式,thx
2009-07-26 7:50 pm
i = 10.0000887%
2009-07-26 7:16 pm
點睇都係20點la 昆水


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