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請(qǐng)問(wèn)這道題第二問(wèn)用插值法如何解呀,既有年金又有復(fù)利
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計(jì)算過(guò)程如下
7561*(P/A,i,20)-300 000*(P/F,i,40)=5645*(P/A,i,20)
則,7561*(P/A,i,20)-5645*(P/A,i,20)=300 000*(P/F,i,40)
1916*(P/A,i,20)-300 000*(P/F,i,40)=0
當(dāng)i=7%時(shí),1916*10.5940-20034.11=263.99
當(dāng)i=6%時(shí),1916*11.4699-29166.66=-7190.33
(7%-6%)/(263.99+7190.33)=(7%-i)/(263.99-0)
1%/7454.32=(7%-i)/263.99
7%-i=263.99/7454.32*1%=0.04%
i=7%-0.04%=6.96%
2023 10/10 21:13
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