【大二MATH的几个题请大家帮忙.很着急.mathematicsofinvestment的几个题#1Aperson'ssavingearnaneffectiverateofi=0.12onwhich45%incometaxispaid.Iftheinflationrateis10%peryear,whatistheannualafter--taxrealrateo】
大二MATH的几个题请大家帮忙.很着急.
mathematicsofinvestment的几个题
#1
Aperson'ssavingearnaneffectiverateofi=0.12onwhich45%incometaxispaid.Iftheinflationrateis10%peryear,whatistheannualafter--taxrealrateofreturn?
#2
Acustomerisofferedaninvestmentwhereiscalculatedaccordingtothefollowingforceofinterest:
St=0.02to
前3题知道怎么做了.......帮我看下第4题吧..
#4
(a)Ataneffectiveannualinterestrateof12%,calculatethenumberofyears(includingfractions)itwilltakeforaninvestmentof1000toaccumulateto3000.
(b)Repeatpart(a)usingassumptionthatforfractionsofayear,simpleinterestisapplied.
(c)Repeatpart(a)usinganeffectivemonthlyinterestrateof1%.
(d)Supposethataninvestmentof1000accumulatedto3000inexactly10yearsateffectiveannualrateofinteresti.Calculatei.
(e)Repeatpart(d)usinganeffectivemonthlyrateofinterestj.Calculatej.